# List of Hypericum species

* Hypericum
* Hypericum perforatum,
* the type species of the genus
* Hypericum calycinum,
* an ornamental plant of the genus
* Clades
* Clade Euhypericum
* sect. Adenosepalum
* sect. Bupleuroides
* sect. Campylopus
* sect. Concinna
* sect. Coridium
* sect. Crossophyllum
* sect. Drosocarpium
* sect. Elodeoida
* sect. Graveolentia
* sect. Hirtella
* sect. Humifusoideum
* sect. Hypericum
* sect. Monanthema
* sect. Oligostema
* sect. Origanifolia
* sect. Sampsonia
* sect. Taeniocarpium
* Clade Brathys s.l.
* sect. Brathys
* sect. Trigynobrathys
* Clade Myriandra-Ascyreia s.l.
* Clade Ascyreia s.l.
* sect. Ascyreia
* sect. Campylosporus
* sect. Psorophytum
* sect. Takasagoya
* Clade Myriandra s.l.
* sect. Androsaemum
* sect. Myriandra
* sect. Roscyna
* Mediterranean Grade
* sect. Adenotrias
* sect. Arthrophyllum
* sect. Heterophylla
* sect. Inodora
* sect. Triadenoides
* sect. Umbraculoides
* sect. Webbia
The genus Hypericum contains approximately 500 species which are divided into 36 sections as described by botanist Norman Robson. This division into distinct sections is largely due to the fact that a genus-wide monograph was performed by Robson in 1977, which allowed for a comprehensive analysis of the genus's taxonomy. A phylogenetic study was more recently completed for the genus, which gave evidence to suggest that the genus Triadenum is a clade within Hypericum and that the genus Thornea is sister to Hypericum. In addition, the study found that about 60% of the sections of Hypericum are monophyletic.
Almost all species of Hypericum are either perennial herbs, shrubs, or small trees, but the genus also contains a small amount of subshrubs and annual herbs. Most of its species contain hypericin or hyperforin and some are used for their healing properties in folk medicine. The species' leaves are always placed opposite, and are normally decussate. Their flowers are generally homostylous, but very few are dimorphically heterostylous. The petals are normally golden yellow or orange, but some are white or cream, and are veined dorsally. They have 4–5 stamen fascicles, 2–5 ovaries, and 2–5 styles. Some species grow capsular fruit which are colored red or blackish.
Hypericum species can be found all over the world in temperate to tropical areas. The genus is most diverse in Turkey (~80 species) and China (~60 species), but can be found across Asia and Europe, in parts of Africa and South America, Australia, and across the United States and southern Canada. Non-native species have also been introduced into various regions of the United States and Argentina. The genus are generally found in dry, desert areas to being in shallow water, and can be found from warm temperate climates to cold temperate climates.
Some Hypericum species are used as ornamental plants because of their large, spreading flowers. These include H. aegypticum, H. androsaemum, H. calycinum, and H. olympicum. In addition, there are a number of hybrids and cultivars that have been developed for use in horticulture. Some notable cultivars are H. × moserianum, H. 'Hidcote', and H. 'Rowallane'. Several species are also used for their medicinal properties, especially their ability to alleviate mild clinical depression, by drawing out the oily extract from the flowers. H. perforatum is the most potent out of all the species, and is the only species cultivated commercially for herbalism and medicine.

## Legend

| Type species | Type species of section | Type species of genus |
| Binomial | The binomial name of the Hypericum species. | The binomial name of the Hypericum species. |
| Common Name | The name that the species is commonly called | The name that the species is commonly called |
| Type | The type of plant that the species is described as | The type of plant that the species is described as |
| Distribution | The country or region where the species is most densely found | The country or region where the species is most densely found |

## Sect. Adenosepalum

Adenosepalum Spach is divided into four subsections: Adenosepalum, Aethiopica, Caprifolia, and the Huber-Morathii Group. These subsections contain eight, seven, eleven, and five species, respectively, giving the section Adenosepalum a total of thirty-one species. In addition, Adenosepalum contains two Nothospecies: H. × joerstadii and H. pubescens × tomentosum. H. annulatum has three distinct subspecies.
Adenosepalum is made up of primarily perennial herbs, and also includes shrubs and shrublets. Its species grow to be approximately 2.5 meters tall, and are generally deciduous. Species in Adenosepalum are glabrous or have simple hairs, and almost always have dark black glands on their leaves, sepals, and rarely on their petals and stems. Their leaves are placed opposite and have no ventral glands. Their flowers are stellate or homostylous. They have 5 sepals, 5 stamen fascicles, and 5 petals.
| Binomial | Common Name | Type | Distribution |
| Subsection Adenosepalum ||||||
| H. annulatum Moris (1827) | | Perennial herb | Balkans, Saudi Arabia, East Africa |
| H. athoum Boiss. & Orph. (1867) | | Perennial herb | Greece |
| H. atomarium Boiss. (1827) | | Perennial herb | Greece, Turkey, Portugal (Naturalized) |
| H. cuisinii Barbey (1885) | | Perennial herb | Europe |
| H. delphicum Boiss. & Heldr. (1854) | | Perennial herb | Evvoia and Andros, Greece |
| H. lanuginosum Lam. (1797) | | Perennial herb | Middle East, Turkey, Cyprus |
| H. montanum L. (1755) | Pale St. John's Wort | Perennial herb | Eurasia and Morocco |
| H. reflexum L.f. (1782) | | Shrub | Canary Islands |
| Subsection Aethiopica ||||||
| H. abilianum N.Robson (1980) | | Subshrub | Huíla Province, Angola |
| H. aethiopicum Thunb. (1800) | | Perennial herb | Southern Africa |
| H. afrum Lam. (1797) | | Perennial herb | Tunisia, Algeria |
| H. conjungens N.Robson (1958) | | Shrub/subshrub | Southwest Tanzania to Zambia |
| H. glandulosum Aiton (1789) | Malfurada del Monte | Shrub | Canary Islands and Madeira |
| H. kiboënse Oliv. (1887) | | Shrub/Subshrub | Uganda, Kenya and North Tanzania |
| Subsection Caprifolia ||||||
| H. caprifolium Boiss. (1838) | | Perennial herb | Spain |
| H. coadunatum Chr. Sm. (1825) | | Subshrub/Perennial herb | Canary Islands |
| H. collenetteae N.Robson (1993) | | Subshrub/Perennial herb | Saudi Arabia |
| H. naudinianum Coss. & Durieu (1855) | | Perennial herb | Morocco, Algeria |
| H. psilophytum (Diels) Maire (1935) | | Perennial herb | Morocco, Algeria |
| H. pubescens Boiss. (1838) | | Perennial herb | Southern Iberia, North Africa |
| H. scruglii Bacch., Brullo & Salmeri (2010) | | Perennial herb | Sardinia |
| H. sinaicum Hochst. ex Boiss. (1867) | | Perennial herb | Egypt, Arabian Peninsula |
| H. somaliense N.Robson (1958) | | Perennial herb | Somalia |
| H. tomentosum L. (1753) | | Perennial herb | Western Mediterranean |
| Huber-Morathii Group ||||||
| H. decaisneanum Coss. & Daveau (1889) | | Perennial herb | Libya |
| H. formosissimum Takht. (1940) | | Perennial herb | Armenia, Azerbaijan, Turkey |
| H. huber-morathii N.Robson (1967) | | Perennial herb | Anatolia, Turkey |
| H. minutum P.H.Davis & Poulter (1954) | | Perennial herb | Mediterranean |
| H. sechmenii Ocak & O.Koyuncu (2009) | | Perennial herb | Turkey |

## Sect. Adenotrias

Adenotrias (Jaub. & Spach) R. Keller contains three species: H. aciferum, H. aegypticum, and H. russeggeri. Its type species is H. russeggeri. It is not divided into any subsections. H. aegypticum has three subspecies: H. aegypticum aegypticum L., H. aegypticum maroccanum (Pau) N.Robson, and H. aegypticum webbii (Spach) N.Robson.
Adenotrias contains shrubs and shrublets. Its species can grow to be up to 2 meters tall. Its species are glabrous, but have no dark glands. Their leaves are lined and glandular, and are cortex green. Their flowers are almost tubular, and are heterostylous. They have 5 sepals, 5 petals, and 3 stamen fascicles.
| Binomial | Common Name | Type | Distribution |
| H. aciferum (Greuter) N.Robson (1967) | | Shrublet | Crete |
| H. aegypticum L. (1753) | Egyptian St. John's Wort | Shrub/shrublet | North Africa, Greece, Sardinia |
| H. russeggeri (Fenzl) R.Keller | | Shrub/shrublet | Turkey, Syria |

## Sect. Androsaemum

Androsaemum (Duhamel) Godron contains four species: H. androsaemum, H. foliosum, H. grandifolium, and H. hircinum. In addition, Androsaemum contains one Nothospecies: H. × inodorum. It is not divided into subsections. Its type species is H. androsaemum. One of its species, H. grandifolium, has five different subspecies. The section's species are often collectively referred to as Tutsan.
Androsaemum contains shrubs that grow to be from 0.3–2 meters tall. Its species are deciduous and glabrous, but have no dark glands. Their leaves are opposite, decussate, free, and are a pale color. Every species has 20 flowers, branching out from 2 separate nodes, which are homostylous. They have 5 sepals, 5 petals, and 5 stamen fascicles.
| Binomial | Common Name | Type | Distribution |
| H. androsaemum L. (1753) | Sweet-Amber | Shrub | Southern Europe, North Africa |
| H. foliosum Aiton (1789) | Azorean St. John's Wort | Shrub | Portugal (The Azores) |
| H. grandifolium Choisy (1821) | Malfurada | Shrub | Madeira and the Canary Islands |
| H. hircinum L. (1753) | Stinking Tutsan | Shrub | France, Iberia, Italy, Middle East, North Africa |

## Sect. Arthrophyllum

Arthrophyllum Jaub. & Spach contains five species, and is not divided into any subsections. Its type species is H. rupestre. Arthrophyllum is most closely related to Webbia.
Arthrophyllum contains shrubs that grow to be approximately 0.9 meters tall and are deciduous but never leafless. Species in Arthrophyllum are glabrous, with reddish to dark glands. Their leaves are placed opposite and are either decussate, sessile, free, or perfoliate and have no ventral glands. They are 40-flowered, and their flowers are stellate and homostylous. They have 5 sepals that lack marginal glands. Arthrophyllum's species also have 5 petals and 3 stamen fascicles, each with 20–40 stamens. Their seeds are narrow and cylindrical.
| Binomial | Type | Distribution |
| H. cardiophyllum Boiss. (1867) | Shrub | Turkey, Lebanon and Syria |
| H. nanum Poir. (1814) | Shrub | Lebanon, Syria and Israel |
| H. pamphylicum N.Robson & P.H.Davis (1980) | Shrub | Turkey |
| H. rupestre Jaub. & Spach (1842) | Shrub | Turkey |
| H. vacciniifolium Hayek & Siehe (1914) | Shrub | East Cilicia, Southern Turkey |

## Sect. Ascyreia

Ascyreia Choisy contains exactly 50 species and also includes four nothospecies. The section is one of the largest in the genus that is not divided into any subsections. Its type species is H. calycinum. The section is synonymous with Norysca Spach..
Ascyreia is made up of mostly shrubs or shrublets, but also contains a few trees. Its species generally grow to be from 4–5 meters tall. Some of the species are evergreen, but most are deciduous. They are glabrous, and lack dark glands. Their leaves are opposite, decussate, and free. The section's species have anywhere from 1–25 flowers, which are stellate and homostylous. They have five sepals, which are free. They also have five petals and five stamen fascicles, which each have 20–100 stamens. Their seeds are cylindric or ellipsoid, and some are laterally winged.
| Binomial | Common Name | Type | Distribution |
| H. acmosepalum N.Robson (1970) | | Shrub | China |
| H. addingtonii N.Robson (1985) | Addington's St. John's Wort | Shrub | China |
| H. augustinii N.Robson (1970) | Augustine's St. John's Wort | Shrub | China |
| H. beanii N.Robson (1970) | | Shrub | China |
| H. bellum H.L.Li (1944) | | Shrub | China |
| H. calycinum L. (1767) | Great St. John's Wort Aaron's Beard Rose of Sharon | Shrub | Bulgaria, Turkey |
| H. choisianum Wall. ex N.Robson (1973) | | Shrub | China, India, Pakistan |
| H. cohaerens N.Robson (1985) | | Shrub | China |
| H. cordifolium Choisy (1824) | | Shrub | Nepal |
| H. curvisepalum N.Robson (1985) | | Shrub | China |
| H. elatoides R.Keller (1904) | | subshrub | China |
| H. forrestii (Chitt.) N.Robson (1970) | Forest Tutsan | Shrub | China, Burma |
| H. gaitii Haines (1919) | | Shrub | India |
| H. gracilipes Stapf ex C.E.C.Fisch. (1940) | | Shrub | India, Bangladesh |
| H. griffithii Hook.f. & Thomson ex Dyer (1874) | | Shrub | Bhutan, India |
| H. henryi H.Lév. & Vaniot (1908) | | Shrub | China, Southeast Asia |
| H. hookerianum Wight & Arn. (1834) | Hooker's St. John's Wort | Shrub | East and South Asia |
| H. kouytchense H.Lév. (1904) | | Shrub | China |
| H. lacei N.Robson (1985) | | Shrub | Myanmar |
| H. lagarocladum N.Robson (1985) | | Shrub | China |
| H. lancasteri N.Robson (1985) | | Shrub | China |
| H. leschenaultii Choisy (1824) | | Shrub/small tree | Indonesia |
| H. lobbii N.Robson (1970) | | Shrub | India |
| H. longistylum Oliv. | | | China |
| H. maclarenii N.Robson (1985) | | Shrub | China |
| H. monogynum L. (1763) | | Shrub | China (Southeast), Taiwan |
| H. mysurense Wall. ex Wight & Arn. (1934) | | Shrub | India (South), Sri Lanka |
| H. oblongifolium Choisy (1821) | Pendant St. John's Wort | Shrub | Pakistan, India, Nepal |
| H. pachyphyllum Collett & Hemsl. (1890) | | Shrub/undershrub | Myanmar |
| H. patulum Thunb. (1784) | Goldencup St. John's Wort Yellow Mosqueta | Shrub | China |
| H. podocarpoides N.Robson (1977) | | Shrub | Nepal, India |
| H. prattii Hemsl. (1892) | | Shrub | China |
| H. pseudohenryi N.Robson (1970) | Irish Tutsan | Shrub | China |
| H. reptans Hook.f. & Thomson ex Dyer (1874) | | Shrublet | China, Burma, India, Nepal |
| H. sherriffii N.Robson & D.G.Long (1983) | | Shrub | Bhutan |
| H. siamense N.Robson (1985) | | Shrub | Thailand |
| H. stellatum N.Robson (1970) | | Shrub | China |
| H. subsessile N.Robson (1985) | | Shrub | China |
| H. tenuicaule Hook.f. & Thomson ex Dyer (1874) | | Shrub | Bhutan, India, Nepal |
| H. uralum Buch.-Ham. ex D.Don (1823) | | Shrub | China, Burma, India |
| H. wardianum N.Robson (2005) | | Shrub | China, Burma |
| H. williamsii N.Robson (1977) | | Shrub | Nepal |
| H. wilsonii N.Robson (1970) | | Shrub | China |

## Sect. Brathys

Brathys (Mutis ex L.f.) Choisy is the largest section in Hypericum. It is divided into four subsections: Brathys, Phellotes, Spachium, and Styphelioides. Brathys contains 38 species and the type species, H. juniperinum. Phellotes contains 32 species, Spachium contains 14 species, and Styphelioides contains just 2 species. In total, the section contains 86 species.
Brathys contains a wide variety of plants, including small trees, shrubs, shrublets, and herbs. The largest species in the section grow to be 6 meters tall, and are evergreen. Its species are glabrous—though a few have simple hairs—and lack any dark glands. Their stems are either 4 or 6–lined, and are compressed when the plant is young, but later become terete. Their leaves are placed opposite, are decussate and sessile, and have dense marginal glands. All the species have either one flower on the uppermost node of the plant or 2–15 flowers branching from the uppermost node and from lower secondary nodes. The flowers are stellate or sometimes obconic, and are homostylous. The species have 5 petals which are persistent. They have 5 stamen fascicles which contain anywhere from 1–50 stamens each, formed in a tight ring, to give the plants a total of anywhere from 5–250 stamens. The plants have 5 ovaries, 5 sepals, and 3–5 styles.
| Binomial | Common Name | Type | Distribution | Image |
| Subsection Brathys ||||||
| H. aciculare Kunth (1821) | | Shrub | Peru, Ecuador | |
| H. andinum Gleason (1929) | | Shrub/shrublet | Bolivia, Peru | |
| H. baccharoides Cuatrec. (1959) | | Shrub | Colombia, Venezuela | |
| H. bolivaricum N. Robson (1987) | | Shrub | Colombia | |
| H. bryoides Gleason (1929) | | Subshrub | Colombia | |
| H. caracasanum Willd. | | Shrub/shrublet | Venezuela | |
| H. cardonae Cuatrec. | | Shrub/shrublet | Costa Rica, Venezuela, Colombia | |
| H. cassiopiforme N. Robson | | Shrub | Peru | |
| H. costaricense N. Robson | Costa Rica St. John's Wort | Shrub/shrublet | Colombia, Costa Rica | |
| H. decandrum Turcz. | | Shrub/shrublet | Ecuador, Peru | |
| H. harlingii N. Robson | | Shrub | Ecuador | |
| H. horizontale N. Robson | | Shrublet | Colombia | |
| H. jaramilloi N. Robson | | Shrub | Costa Rica, Colombia | |
| H. juniperinum Kunth | | Shrub/shrublet | Colombia, Venezuela | |
| H. lancifolium Gleason | | Shrub | Colombia, Venezuela | |
| H. lancioides Cuatrec. | | Shrub | Colombia, Ecuador, Venezuela | |
| H. llanganaticum N. Robson | | Shrub | Ecuador | |
| H. magdalenicum N. Robson | | Shrub/small tree | Colombia, Venezuela | |
| H. magniflorum Cuatrec. | | Shrub | Colombia, Venezuela | |
| H. marahuacanum N. Robson | | Shrub | Colombia, Venezuela | |
| H. mexicanum L. | | Shrub/shrublet | Colombia, Venezuela | |
| H. millefolium Urb. & Ekman | | Shrub | Haiti | |
| H. parallelum N. Robson | | Shrub | Colombia | |
| H. pimeleoides Planch. & Linden ex Triana & Planch. | | Shrub | Colombia | |
| H. prietoi N. Robson (1945) | | Shrub | Ecuador | |
| H. prostratum Cuatrec. | | Shrub/Shrublet | Colombia | |
| H. pycnophyllum Urb. | | Shrub | Dominican Republic | |
| H. recurvum N. Robson | | Shrub | Peru | |
| H. ruscoides Cuatrec. | | Shrub | Colombia, Ecuador | |
| H. selaginella N. Robson | | Shrublet | Colombia | |
| H. sprucei N. Robson | | Shrub | Ecuador | |
| H. strictum Kunth | | Shrub | Colombia | |
| H. struthiolifolium Juss. | | Shrub | Peru | |
| H. stuebelii Hieron. | | Shrub | South America | |
| H. tetrastichum Cuatrec. | | Shrub/shrublet | Colombia | |
| H. valleanum N. Robson | | Shrub | Colombia | |
| H. wurdackii N. Robson | | Shrub | Peru | |
| Subsection Phellotes ||||||
| H. acostanum Steyerm. ex N. Robson | | Shrub | Ecuador | |
| H. asplundii N. Robson | | Shrublet | Ecuador | |
| H. callacallanum N. Robson | | Shrub | Peru | |
| H. carinosum R. Keller | | Shrub | Colombia, Venezuela | |
| H. castellanoi N. Robson | | Shrub/shrublet | Colombia, Venezuela | |
| H. cuatrecasii Gleason | | Shrub | Colombia | |
| H. espinalii N. Robson | | Shrub | Colombia | |
| H. garciae Pierce | | Shrub | Colombia, Venezuela | |
| H. gladiatum N. Robson | | Shrub | Colombia | |
| H. goyanesii Cuatrec. | | Shrub | Colombia | |
| H. hartwegii Benth. (1843) | | Shrub | Ecuador | |
| H. humboldtianum Steud. (1840) | | Shrub/shrublet | Colombia, Venezuela | |
| H. irazuense Kuntze ex N. Robson | | Shrub/small tree | Costa Rica, Panama | |
| H. laricifolium Juss. | | Shrub/small tree | Colombia, Ecuador, Peru, Venezuela | |
| H. loxense Benth. | | Shrub/shrublet | Ecuador, Peru | |
| H. lycopodioides Triana & Planch. | | Shrub | Colombia | |
| H. maguirei N. Robson | | Shrub | Ecuador | |
| H. martense N. Robson | | Shrublet | Colombia | |
| H. matangense N. Robson (1990) | | Shrub | Ecuador | |
| H. myricariifolium Hieron. | | Shrub | Colombia | |
| H. papillosum N. Robson | | Shrub | Colombia | |
| H. paramitanum N. Robson | | Shrub/small tree | Venezuela | |
| H. phellos Gleason (1929) | | Shrub/small tree | Colombia, Venezuela | |
| H. piriai Arechav. | Atlantic St. John's Wort | Shrub/perennial herb | Brazil, Uruguay | |
| H. quitense R.Keller | | Shrub/shrublet | Ecuador | |
| H. radicans N. Robson | | Shrublet | Colombia | |
| H. roraimense Gleason | | Shrub | Venezuela | |
| H. sabiniforme Trevis. | | Shrub | Colombia | |
| H. simonsii N. Robson | | Shrub (?) | Colombia | |
| H. stenopetalum Turcz. | | Shrub/small tree | Colombia, Venezuela | |
| H. thuyoides Kunth | | Shrub/small tree | Colombia | |
| H. woodianum N. Robson | | Shrub | Colombia | |
| Subsection Spachium ||||||
| H. arbuscula Standl. & Steyerm. | | Subshrub/shrublet | Mexico, Guatemala | |
| H. beamanii N. Robson | | Shrublet | Guatemala | |
| H. chamaemyrtus Triana & Planch. | | Subshrub | Colombia, Venezuela | |
| H. cymobrathys N. Robson | | Shrub | Colombia | |
| H. dichotomum Lam. | | Perennial herb | Dominican Republic, Haiti | |
| H. diosmoides Griseb. | Puerto Rico St. John's Wort | Perennial herb | Caribbean | |
| H. drummondii (Grev. & Hook.) Torr. & A. Gray | Drummond's St. John's Wort Nits and Lice | Annual herb | United States | |
| H. eastwoodianum I.M.Johnst. | Eastwood's St. John's Wort | Subshrub/shrublet | Mexico | |
| H. fuertesii Urb. | | Shrublet/perennial herb | Dominican Republic, Haiti | |
| H. galinum S.F. Blake | | Shrublet | Mexico | |
| H. gentianoides (L.) Britton, Sterns & Poggenb. | Pineweed Orangegrass | Annual herb | Canada, United States, South America | |
| H. gnidioides Seem. | | Subshrub/shrublet | Costa Rica, Honduras, Panama | |
| H. peninsulare Eastw. | | Subshrub/perennial herb | Mexico | |
| H. rubritinctum N. Robson | | Shrublet | Mexico | N. Robson |
| Subsection Styphelioides ||||||
| H. styphelioides A.Rich. | | Shrub | Cuba | |
| H. terrae-firmae Sprague & L.Riley | | Shrub/small tree | Belize | |

## Sect. Bupleuroides

Bupleuroides Stef. contains one species, H. bupleuroides, which shares the name of the section.
H. bupleuroides is a perennial herb that grows to be approximately 75 centimeters tall. The species' stems sprout from branching rhizomes, and are glabrous and lack dark glands. The leaves are placed opposite and are terete and are perfoliate. It has anywhere from 4–25 flowers that branch from 1–5 nodes and are stellate and homostylous and have 5 petals. There are either 3 or 4 stamen fascicles with 20–25 stamens each. The species has 5 sepals, 3 ovaries, and 3 styles.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. bupleuroides Stef. (1852) | | Perennial herb | Turkey, Russia | | |

## Sect. Campylopus

Campylopus Boiss. contains one species, H. cerastioides, which is also frequently called H. campylopus. This species is widely cultivated for its vibrant flowers. The section is most closely related to Olympia and Oligostema which are its sister taxa.
Hypericum cerastioides is a perennial herb that grows to be 6–25 centimeters tall, and normally grows upright but sometimes grows prostrate along the ground. It can have a few or numerous stems from plant to plant, and is normally unbranched or branched only below the inflorescence. The stems are white and pubescent with 5–35 millimeter long internodes that can be either shorter or longer than the leaves. It is 1–5 flowered with flowers 2–5 centimeters in diameter. The petals are golden yellow without a tint of red and number 2 times the number of sepals in the inflorescence, and there are 60–100 stamens.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. cerastioides N.Robson (1967) | | Subshrub/Perennial herb | Bulgaria, Greece and Turkey | | |

## Sect. Camplyosporus

Campylosporus (Spach) R. Keller contains ten species from Africa and the Middle East. Its type species is H. lanceolatum.
The section contains primarily shrubs and trees that can be spreading or grow up to twelve meters tall. They are all evergreen and may or may not have dark glands along the branches. Most species have bark which is fissured and scaly. The species have many flowers which are homostylous. They have five sepals, five petals, and five stamen fascicles which each have 20–45 stamens.
| Binomial | Common Name | Type | Distribution |
| H. balfourii N.Robson | | Shrub/tree | Socotra |
| H. bequaertii De Wild. | | Shrub/tree | Kenya, Uganda, Zaïre |
| H. gnidiifolium A.Rich. | | Shrub/tree | Ethiopia |
| H. lanceolatum Lam. | | Shrub/small tree | Comoros, Réunion |
| H. madagascariense (Spach) Steud. | Madagascar St. John's Wort | Shrub | Madagascar |
| H. quartinianum A.Rich. | | Shrub/tree | Ethiopia, Kenya, Malawi, Mozambique, Sudan, Tanzania, Uganda, Yemen, Zambia, Zaïre |
| H. revolutum Vahl | Curry Bush | Shrub/tree | Middle East, Ethiopia, Cameroon |
| H. roeperianum Schimp. ex A.Rich. | Large-leaved Curry Bush | Shrub/tree | Limpopo, South Africa |
| H. socotranum R.D.Good | Socotra St. John's Wort | Shrub | Socotra |
| H. synstylum N.Robson | | Shrub | Ethiopia, Somalia |

## Sect. Concinna

Concinna N.Robson contains one species, H. concinnum, which is commonly known as Goldwire.
H. concinnum is a perennial herb or infrequently a subshrub that grows up to 45 centimeters tall. Its stems are erect or ascend from taproots and have dark glands, and change from 4-lined to 2-lined as the species grows. The leaves are placed opposite, and are decussate and free, with closed lamina. The species is 17-flowered and the flowers are stellate and homostylous, with five petals each. The species has five stamen fascicles and a total of 40–100 stamens.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. concinnum Benth. (1849) | Goldwire | Perennial herb/subshrub | California | | |

## Sect. Coridium

Coridium Spach contains six species from with distributions across Europe. Its type species is H. coris.
The species in the section are low dwarf shrubs or perennial herbs that grow up to 60 centimeters tall. The leaves are glabrous or paperlike, with stems that branch from the taproot and that have dark red and black glands. The leaves are three or four-whorled and have one vein. The species have one to many flowers that come from one to six nodes and are stellate and homostylous. They have five sepals, five petals, and three stamen fascicles with a total of 25–60 stamens.
| Binomial | Common Name | Type | Distribution |
| H. amblyocalyx Coustur. & Gand (1917) | | Dwarf shrub | Crete |
| H. asperuloides Czern. ex Turcz. (1858) | | Perennial herb | Russia |
| H. coris L. (1753) | Heath-leaved St. John's Wort | Low shrub | Switzerland and north-western Italy |
| H. empetrifolium Willd. (1803) | | Subshrub | Albania, Greece, Crete, East Aegean Islands, Turkey, Libya |
| H. ericoides L. (1753) | | Dwarf shrub | Spain, Tunisia, Morocco |
| H. jovis Greuter (1975) | | Dwarf shrub | Crete |

## Sect. Crossophyllum

Crossophyllum Spach contains 4 species of perennial herbs. Its type species is H. orientale. The other species in the section are H. adenotrichum, H. aucheri, and H. thasium.
Species in Crossophyllum grow to be around 55 centimeters tall. They are glabrous, and their stems are erect from a rooting base. Their flowers also branch from the base and sometimes from intermediate nodes. The species have anywhere from 1 to 50 flowers which are stellate and homostylous. Their stems are narrow and eglandular and have dark black or amber glands on raised lines. The leaves are placed opposite and are free and decussate. The species have 5 sepals, 5 petals, and 3 or 5 stamen fascicles with 10–20 stamens each.
| Binomial | Common Name | Type | Distribution |
| H. adenotrichum Spach (1826) | Kantaron | Perennial herb | Turkey |
| H. aucheri Jaub. & Spach (1842) | | Perennial herb | Bulgaria, Greece, Turkey |
| H. orientale L. (1753) | | Perennial herb | Georgia, Turkey, Russia |
| H. thasium Griesb. (1843) | | Perennial herb | Bulgaria, Greece, Turkey |

## Sect. Drosocarpium

Drosocarpium Spach contains small perennial herbs that are found around the Mediterranean. H. richeri has 3 subspecies.
The species in the section grow up to 80 centimeters tall and are glabrous (except H. rochelii). Their leaves are placed opposite and are decussate and free. The species have anywhere between one and seventy flowers branching from one to three nodes which are stellate and homostylous. The species has five petals that are persistent after flowering and erect but not twisting, three or four stamen fascicles with a total of thirty to eighty stamens, and three to four styles.
| Binomial | Common Name | Type | Distribution |
| H. ambiguum Elliott (1821) | | | |
| H. barbatum Jacq. (1775) | Bearded St. John's Wort | Perennial herb | Austria, Italy, Balkans |
| H. bithynicum Boiss. (1849) | | Perennial herb | Georgia, Turkey (Northern) |
| H. confusum Rose (1906) | | | |
| H. montbretii Spach (1836) | | Perennial herb | Balkans, Turkey, Syria, Lebanon, Russia |
| H. perfoliatum L. (1767) | | Perennial herb | Iberia, North Africa, France, Italy, Greece, Turkey |
| H. richeri Vill. (1779) | Alpine St. John's Wort | Perennial herb | Balkans, Switzerland (Alps), Spain (Pyrenees) |
| H. rochelii Griseb. & Schenk (1852) | | Perennial herb | Balkans |
| H. rumeliacum Boiss. (1849) | | Perennial herb | Balkans |
| H. spruneri Boiss. (1849) | | Perennial herb | |
| H. trichocaulon Boiss. & Heldr. (1849) | | Perennial herb | |
| H. umbellatum A. Kern. (1863) | | Perennial herb | Balkans |
| H. vesiculosum Griesb. (1843) | | Perennial herb | Greece, Turkey |

## Sect. Elodeoida

Elodeoida N.Robson contains tall species of annual and perennial herbs. Its type species is H. elodeoides.
The species in the section grow to be up to one meter tall. Their stems are erect or lie flat, sometimes branch out at the base, and are terete. The leaves have dark glands on them and are placed opposite, are decussate, and grow about a centimeter long. The species can have up to fifty flowers, which are homostylous and stellate. They have five petal that remain after flowering and are erect. There are five stamen fascicles are there are a total of nine to sixty stamens with dark anther glands. The seeds are cylindric.
| Binomial | Common Name | Type | Distribution |
| H. austroyunnanicum L.H. Wu & D.P. Yang (2002) | Minnan St. John's Wort | Perennial herb | |
| H. elodeoides Choisy (1824) | Straight-stemmed St. John's Wort | Perennial herb | China, Myanmar, India, Bhutan, Nepal |
| H. hubeiense L.H. Wu & D.P. Yang (2004) | | Perennial herb | |
| H. kingdonii N.Robson (2001) | | Perennial herb | China, Myanmar, India |
| H. petiolulatum Hook.f. & Thomson ex Dyer (1874) | | Perennial herb/annual herb | China, India, Southeast Asia |
| H. qinlingense X.C.Du & Y.Ren (2005) | | Perennial herb | |
| H. seniawinii Maxim. (1881) | | Perennial herb | |

## Sect. Graveolentia

Graveolentia N.Robson is a diverse section of nine species whose type species is H. graveolens.
Graveolentia is similar to sect. Hypericum but differs in having mature stem internodes with different characteristics, as well as sepals with linear laminar glands and amber anther glands. Species in the section have one to seventy flowers regularly, but can have up to 124 in some circumstances, and they grow from one to four different nodes. The species have five sepals that are free and persistent and stand erect when the plants are in fruit. They also have five petals that are erect and not twisting and lack apiculus. There are also five stamen fascicles with a total of sixteen to ninety stamens.
| Binomial | Common Name | Type | Distribution |
| H. collinum Schltdl. & Cham. (1830) | | Wiry perennial herb | Mexico |
| H. epigeium R.Keller (1908) | | Wiry perennial herb | Mexico, Guatemala |
| H. formosum Kunth (1822) | Western St. John's Wort | Perennial herb | Mexico |
| H. graveolens Buckley (1843) | Mountain St. John's Wort | Perennial herb | |
| H. macvaughii N.Robson (2006) | | Perennial herb | Mexico |
| H. oaxacanum R.Keller (1923) | | Wiry perennial herb/subshrub | Guatemala, Mexico |
| H. pringlei S.Watson (1890) | | Perennial herb | Mexico |
| H. pseudomaculatum Bush (1901) | False Spotted St. John's Wort | Perennial herb | |
| H. punctatum Lam. (1796) | Spotted St. John's Wort | Perennial herb | Canada, United States |

## Sect. Heterophylla

Heterophylla N.Robson contains a single shrublet, H. heterophyllum, from which the section derives its name.
H. heterophyllum is a shrublet that grows to be up to 25 centimeters tall. It is semi-deciduous and glabrous and lacks dark glands. The stems are 2-lined and are colored cortex green, but their bark is smooth and reddish brown. The leaves are placed opposite and are decussate, sessile, and free. The leaf blades are open or 1-nerved and their glands are linear to punctiform and are dense in the margins but the ventral glands are absent. They have 3-12 flowers that branch from 1–3 nodes and sometimes the lower branches will flower as well., and the flowers are stellate and homostylous. There are five sepals, three styles, and three stamen fascicles with a total of 35–45 stamens.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. heterophyllum Vent. (1802) | | Shrublet | | | |

## Sect. Hirtella

Hirtella Stef., not to be confused with the unrelated genus Hirtella described by Linnaeus, is split into two subsections: subsect. Platyadenum and subsect. Stenadum, which have eighteen and eleven species respectively for a total of twenty nine species.
The section contains perennial herbs that grow up to eighty centimeters tall. They are often glaucous and the stems are erect or decumbent, and are rarely rooting (H. hyssopifolium). The stems are 2-lined and usually glandiferous. The leaves are placed opposite, are decussate, sessile, and are usually free. The leaf blades have pale glands but lack ventral glands. The species have few to many flowers that grow from five to fifteen nodes, and sometimes have flowering branches from lower nodes. Their flowers are stellate and homostylous. They have five sepals, five petals that are sometimes tinged red, and around three stamen fascicles with a total of 25–60 stamens. The seeds are cylindrical in shape.
| Binomial | Type | Distribution |
| Subsection Platyadenum ||||||
| H. amblysepalum Hochst. (1845) | Perennial herb | Israel, Lebanon, Syria, Turkey, Iraq, Iran |
| H. asperulum Jaub. & Spach (1842) | Perennial herb | Iraq |
| H. capitatum Choisy (1821) | Perennial herb | Syria, Turkey |
| H. hedgei N.Robson (2010) | Perennial herb | |
| H. helianthemoides (Spach) Boiss. (1849) | Perennial herb | Turkey, Azerbaijan, Iran, Turkmenistan |
| H. hirtellum (Spach) Boiss. (1849) | Perennial herb | Iran, Iraq |
| H. libanoticum N.Robson (1970) | Perennial herb | |
| H. lydium Boiss. | Perennial herb | |
| H. lysimachioides Boiss. & Noë (1854) | Perennial herb | Turkey, Iraq, Iran |
| H. olivieri (Spach) Boiss. (1867) | Perennial herb | Jordan, Syria, Turkey, Iraq, Iran? |
| H. pseudolaeve N.Robson (1967) | Perennial herb | Turkey, Georgia, Armenia, Azerbaijan |
| H. retusum Aucher ex Jaub. & Spach (1842) | Perennial herb | Syria, Turkey, Iraq |
| H. scabroides N.Robson & Poulter (1967) | Perennial herb | Turkey |
| H. scabrum L. (1755) | Perennial herb | Middle East, Caucasus, Central Asia, China |
| H. spectabile Jaub. & Spach (1842) | Perennial herb | Turkey, Syria |
| H. thymbrifolium Boiss. & Noë (1854) | Perennial herb | Turkey |
| H. thymopsis Boiss. (1854) | Perennial herb | Turkey |
| H. vermiculare Boiss. & Hausskn. (1888) | Perennial herb | Iraq, Iran |
| Subsection Stenadenum ||||||
| H. apiculatum (N.Robson) Sennikov (1993) | Perennial herb | Turkey, Transcaucasia, Iran, Central Asia |
| H. apricum Kar. & Kir. (1842) | Perennial herb | Central Asia |
| H. callithyrsum Coss. (1852) | Perennial herb | Spain, Morocco |
| H. davisii N.Robson | Perennial herb | Turkey, Armenia, Iran |
| H. elongatum Ledeb. ex Rchb. (1825) | Perennial herb | Turkey, Transcaucasia, Iran, Central Asia, China |
| H. hyssopifolium Chaix (1786) | Perennial herb | Spain, France, Italy, Serbia, Bulgaria |
| H. karjaginii Rzazade (1954) | Perennial herb | Turkey, Armenia, Azerbaijan, Iran |
| H. microcalycinum Boiss. & Heldr. (1849) | Perennial herb | Turkey (Antalya, Konya, Isparta, Adana, Hatay) |
| H. salsolifolium Hand.-Mazz. (1913) | Perennial herb | Turkey |
| H. sorgerae N.Robson (1986) | Perennial herb | Turkey |
| H. tymphresteum Boiss. & Spruner (1843) | Perennial herb | |

## Sect. Humifusoideum

Humifusoideum R. Keller, also called Pulogensia, contains 6 species. Its type species is H. peplidifolium. H. beccarii has two subspecies: H. beccarii beccarii and H. beccarii steenisii.
Sect. Humifusoideum contains shrubs, subshrubs, and herbs that grow erect or prostrate and grow up to 1.5 meters tall. The shrubs are evergreen and glabrous and usually have dark glands. The stems are either 2-lined or 4-lined and are flattened when the plant is young, they usually lack glands, but rarely have dark glands; they are colored cortex greed or a dark red, while the bark is smooth and colored red-brown. The leaves are placed opposite, are decussate and free, and their blades are entire and either closed or open, with pale glands. The species usually have one flower, but very rarely can have up to ten that come from two nodes. The flowers are stellate and homostylous and have five free sepals that are persistent, five petals that are persistent and spreading, and three to five stamen fascicles with anywhere from ten to eighty stamens. The seeds are cylindric.
| Binomial | Common Name | Type | Distribution |
| H. beccarii N.Robson (1973) | Beccari's St. John's Wort | Perennial/annual herb | Indonesia (Sumatra, Java) |
| H. nagasawae Hayata (1973) | | Perennial herb/shrublet | |
| H. natalense J.M. Wood & M.S. Evans | | Perennial herb | South Africa, Eswatini |
| H. nokoense Ohwi (1937) | | Perennial herb | |
| H. peplidifolium A.Rich (1847) | | Perennial herb | Sub-saharan Africa |
| H. wilmsii R.Keller (1908) | | Perennial herb | Zimbabwe, South Africa, Madagascar |

## Sect. Hypericum

Hypericum, sometimes referred to as the "type section" of the genus, contains perennial herbs and very few subshrubs. It contains the type species of the genus, H. perforatum. Subsect. Erecta, with twenty-three species, is the far less studied subsection of the section, while the details of subsect. Hypericum have been much more analyzed. Subsect. Hypericum has eighteen species total, with ten (including the type species) in ser. Hypericum, and eight in ser. Senanensia. The section contains forty-one species in total.
The species in sect. Hypericum grow to be 1.2 meters tall and can grow either erect or prostrate. They are glabrous some have dark glands while others do not. Their stems are 2-lined or 2-winged when young and either remain so or become terete as the plant ages. The leaves are placed opposite or abnormally whorled, are decussate, and are either sessile or pseudopetiolate, as well as being free and persistent. They are up to 70-flowered from one to four nodes, with some lower subsidiary branches. The flowers are stellate and homostylous. The species have 5 persistent sepals, 3 stamen fascicles, and 20–100 total stamens.
| Binomial | Common Name | Type | Distribution |
| Subsection Erecta ||||||
| H. asahinae Makino | | Perennial herb | Japan |
| H. elegans Stephan ex Willd. | Elegant St. John's Wort | Perennial herb | Russia, Germany, Eastern Europe, Balkans |
| H. erectum Thunb. | | Perennial herb | Russia, Korea, Japan, Taiwan, China |
| H. furusei N.Robson | | Perennial herb | Japan |
| H. gracillimum Koidz. | | Perennial herb | Japan |
| H. hachijyoense Nakai | | Perennial herb | Japan (Honshū) |
| H. hakonense Franch. & Sav. | | Perennial herb | Japan |
| H. kawaranum N.Robson | | Perennial herb | Japan (Hokkaidō) |
| H. kinashianum Koidz. | | Perennial herb | Japan (Honshū, Kyūshū) |
| H. kitamense (Y.Kimura) N.Robson | | Perennial herb | Japan (Hokkaidō) |
| H. kiusianum Koidz. | | Perennial herb | Japan (Honshū, Kyūshū, Ryūkyū Islands) |
| H. kurodakeanum N.Robson | | Perennial herb | Japan |
| H. nikkoense Makino | | Perennial herb | Japan |
| H. nuporoense N.Robson | | Perennial herb | Japan (Hokkaidō) |
| H. ovalifolium Koidz. | | Perennial herb | Japan |
| H. pseudoerectum N.Robson | | Perennial herb | Japan (Hokkaidō) |
| H. pseudopetiolatum R.Keller | | Perennial herb | Japan |
| H. taihezanense Sasaki ex S.Suzuki | | Perennial herb | Taiwan, China, Philippines, Malaysia, Indonesia |
| H. uniglandulosum Hausskn. ex Bornm. | | Perennial herb | |
| H. vulcanicum Koidz. | | Perennial herb | Japan |
| H. watanabei N.Robson | | Perennial herb | Japan |
| H. yamamotoanum H.Koidz. | | Perennial herb | Japan (Hokkaidō) |
| H. yamamotoi Miyabe & Kimura | | Perennial herb | Japan (Hokkaidō) |
| Subsection Hypericum ||||||
| Series Hypericum ||||||
| H. attenuatum Fisch. ex Choisy (1821) | | Perennial herb | Russia, China, Mongolia, Korea |
| H. iwate-littorale H.Koidz. (1937) | | Perennial herb | Japan (Honshû, Iwate) |
| H. maculatum Crantz (1763) | Imperforate St. John's Wort | Perennial herb | Europe, Canada (Introduced) |
| H. momoseanum Makino (1931) | | Perennial herb | Japan (Honshû) |
| H. perforatum L. (1753) | Common St. John's Wort Perforate St. John's Wort Klamath weed | Perennial herb | |
| H. scouleri Hook. (1831) | Scouler's St. John's Wort | Perennial herb | Canada, United States, Mexico |
| H. tetrapterum Fr. (1828) | Slender St. John's Wort | Perennial herb | |
| H. triquetrifolium Turra (1765) | Wavy-leaved St. John's Wort Curled-leaved St. John's Wort | Perennial herb | |
| H. undulatum Schousb. ex Willd. (1809) | Flax-Leaved St. John's Wort | Perennial herb | British Isles, France (Brittany), Iberia, North Africa |
| H. yezoënse Maxim. (1887) | | Perennial herb | |
| Series Senanensia ||||||
| H. enshiense L.H. Wu & F.S. Wang (2004) | | Perennial herb | China (Hubei) |
| H. faberi R.Keller (1925) | | Perennial herb | China |
| H. kamtschaticum Ledeb. (1841) | | Perennial herb | Russia, Japan |
| H. nakaii H.Koidz. (1937) | | Perennial herb | Japan (Hokkaido) |
| H. oliganthum Franch. & Sav. (1878) | | Perennial herb | Korea, Japan |
| H. pibairense (Miyabe & Y.Kimura) N.Robson (2006) | | Perennial herb | Japan (Hokkaido) |
| H. senanense Maxim. (1887) | | Perennial herb | |
| H. sikokumontanum Makino (1898) | | Perennial herb | Japan (Shikoku, Kyūshū) |

## Sect. Inodora

Inodora Stef. contains one species, a shrub called H. xylosteifolium or sometimes H. inodorum.
H. xylosteifolium grows to be approximately 1.5 meters, and is a deciduous plant. It typically has anywhere from 1–7 flowers, which are terminal and sometimes have subsidiary branches. The flowers are 1.5–3 cm in diameter and are stellate and rounded. Its anthers are yellow-orange and its stamen are in fascicles in groups of 10–11.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. xylosteifolium (Spach) N.Robson (1967) | Turkish Tutsan | Shrub | | | |

## Sect. Monanthema

Monanthema N.Robson contains 7 species native to eastern Asia. One of its species, H. monanthemum, has two subspecies: H. monanthemum filicaule and H. monanthemum monanthemum.
The section contains small perennial herbs that grow up to 40 centimeters tall. Their stems are erect to prostrate, and are creeping and branching at the base of the plant. They are glabrous and have dark glands on their leaves, seals, and petals. The stems are terete when mature and are normally eglandular, but will very rarely have a few reddish glands. The leaves are opposite, decussate, and sessile or pseudopetiolate. The laminar glands are either pale or black, and can be very dense to almost absent, and are relatively small. The species are normally 1-15 flowered, but in rare cases can have up to 50 flowers. They grow from one or two nodes, with lower subsidiary branches, and are stellate and homostylous. They have five sepals, five petals, five stamen fascicles with 10–45 total stamens, and 2–4 ovaries. The seeds are cylindric and not carinate.
| Binomial | Type |
| H. daliense N.Robson (2001) | Perennial herb |
| H. himalaicum N.Robson (1977) | Perennial herb |
| H. ludlowii N.Robson (1983) | Perennial herb |
| H. monanthemum Hook.f. & Thomson ex Dyer (1874) | Perennial herb |
| H. subcordatum (R.Keller) N.Robson (2001) | Perennial herb |
| H. trigonum Hand.-Mazz. (1931) | Perennial herb |
| H. wightianum Wall. ex Wight & Arn. (1834) | Perennial herb |

## Sect. Myriandra

Myriandra (Spach) R. Keller contains shrubs, shrublets, and perennial herbs that grow to be up to 4.5 m.
| Binomial | Common Name | Type | Distribution |
| Subsection Ascyrum ||||||
| H. crux-andreae (L.) Crantz | Atlantic St. Peter's Wort | Shrub | |
| H. edisonianum (Small) W.P. Adams & N.Robson | Arcadian St. John's Wort | Shrub | United States |
| H. hypericoides (L.) Crantz | St. Andrew's Cross | Shrub/Wiry shrublet | United States, Mexico, Central America |
| H. suffruticosum W.P. Adams & N.Robson | Pineland St. John's Wort | Dwarf shrub | United States |
| H. tetrapetalum Lam. | Four-Petaled St. John's Wort | Shrub/Perennial herb | United States, Cuba |
| Subsection Brathydium ||||||
| H. dolabriforme Vent. | Straggling St. John's Wort | Subshrub | United States |
| H. myrtifolium Lam. | Myrtle-leaf St. John's Wort | Shrub | United States |
| Subsection Centrosperma ||||||
| H. brachyphyllum (Spach) Steud. | Coastal Plain St. John's Wort | Shrub | United States |
| H. chamaenerium (Spach) Steud. | Roundfruit St. John's Wort | | |
| H. chapmanii W.P. Adams | Apalachicola St. John's Wort | Shrub | United States (Florida) |
| H. densiflorum Pursh | Dense St. John's Wort | Shrub | Eastern United States |
| H. exile W.P. Adams | Florida Sands St. John's Wort | | Southeastern United States |
| H. fasciculatum Lam. | Peelbark St. John's Wort Sandweed | Shrub | United States |
| H. frondosum Michx. | Cedarglade St. John's Wort | Shrub | United States |
| H. galioides Lam. | Bedstraw St. John's Wort | Shrub | United States |
| H. glomeratum Small | | | |
| H. kalmianum L. | Kalm's St. John's Wort | Shrublet | United States, Canada |
| H. lissophloeus W.P. Adams | Smoothbark St. John's Wort | Shrub | United States |
| H. lloydii (Svenson) P.B.Adams | Sandhill St. John's Wort | Shrub | United States |
| H. lobocarpum Gatt. | Fivelobe St. John's Wort | Shrub | United States |
| H. nitidum Lam. | Carolina St. John's Wort | Shrub/small tree | United States, Cuba, Belize |
| H. opacum Torr. & A. Gray | | | |
| H. prolificum L. | Shrubby St. John's Wort | Shrub | United States, Canada |
| H. swinkianum G.Wilh. & L. Rericha | Swink's St. Johns wort | Shrub | |
| H. tenuifolium Pursh | Atlantic St. John's Wort | Shrub | |
| Subsection Pseudobrathydium ||||||
| H. buckleyi M.A.Curtis | Buckley's St. John's Wort | Shrub | |
| Subsection Suturosperma ||||||
| H. adpressum W.P.C. Barton | Creeping St. John's Wort | Perennial herb | |
| H. apocynifolium Small | Early St. John's Wort | Shrub | |
| H. cistifolium Lam. | Roundpod St. John's Wort | Shrub/subshrub | |
| H. ellipticum Hook. | Pale St. John's Wort | Perennial herb | Canada, United States |
| H. microsepalum (Torr. & A. Gray) A. Gray ex S. Watson | Flatwoods St. John's Wort | Shrub | |
| H. nudiflorum Michx. ex Willd. | Early St. John's Wort | Shrub | |
| H. sphaerocarpum Michx. | Roundseed St. John's Wort | Subshrub/perennial herb | |

## Sect. Oligostema

Oligostema (Boiss.) Stef. consists of perennial and annual herbs up to 75 cm tall.
| Binomial | Common Name | Type | Distribution |
| H. andjerinum Font Quer & Pau | | Perennial herb | Morocco |
| H. australe Ten. | Southern St. John's Wort | Perennial herb | |
| H. humifusum L. | Trailing St. John's Wort | Perennial/ biennial/annual herb | |
| H. kelleri Bald. | Keller's St. John's Wort | Perennial herb | |
| H. linariifolium Vahl | Toadflax-leaved St. John's Wort | Perennial herb | |
| H. repens L. | | Perennial herb | |

## Sect. Olympia

Olympia (Spach) Nymam contains four dwarf shrubs. Its type species is H. olympicum.
| Binomial | Common Name | Type | Distribution |
| H. auriculatum (N.Robson & Hub.-Mor.) N.Robson (2010) | | Shrub/subshrub | |
| H. lycium (N.Robson & Hub.-Mor.) N.Robson (2010) | | Shrub/subshrub | |
| H. olympicum L. (1753) | Mount Olympus St. John's Wort | Shrub/subshrub | Balkans |
| H. polyphyllum Boiss. & Balansa (1856) | | Shrub/subshrub | Southeastern Turkey, Syria |

## Sect. Origanifolia

Origanifolia Spach contains 13 species of shrub-like perennial herbs. Its type species is H. origanifolium.
| Binomial | Type | Distribution |
| H. albiflorum (Hub.-Mor.) N.Robson | Perennial herb | Turkey |
| H. aviculariifolium Jaub. & Spach | Perennial herb | Turkey |
| H. bourgaei (Boiss.) N.Robson | Perennial herb | Turkey |
| H. cymbiferum Boiss. & Balansa | Perennial herb | Turkey |
| H. ichelense N.Robson | Perennial herb | Turkey |
| H. imbricatum Poulter | Perennial herb | Turkey |
| H. laxiflorum N.Robson | Perennial herb | Turkey |
| H. leprosum Boiss. | Perennial herb | Turkey |
| H. origanifolium Willd. | Perennial herb | Georgia, Syria, Turkey |
| H. papillare Boiss. & Heldr. | Perennial herb | Turkey |
| H. salsugineum N.Robson & Hub.-Mor. | Perennial herb | Turkey |
| H. trachyphyllum Griseb. | Perennial herb | Turkey |
| H. uniflorum Boiss. & Heldr. | Perennial herb | Turkey |

## Sect. Psorophytum

Psorophytum (Spach) Nyman contains a single species, H. balearicum.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. balearicum L. (1753) | Hipérico de las Baleares | Shrub/small tree | Balearic Islands | | |

## Sect. Roscyna

Roscyna (Spach) R. Keller contains 2 species: its type species, H. ascyron, and H. przewalskii. Roscyna was once considered to be its own individual genus which contained only the two species. H. ascyron has two subspecies, H. ascyron ascyron and H. ascyron gebleri.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. ascyron L. (1753) | Great St. John's Wort | Perennial herb | | | |
| H. przewalskii Maxim. (1881) | Przewalksi's St. John's Wort | Perennial herb | China | | |

## Sect. Sampsonia

Sampsonia N.Robson contains two species: its type species, H. sampsonii, and H. assamicum.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. assamicum S.N.Biswas (1971) | Assamese St. John's Wort | Perennial herb | India | | |
| H. sampsonii Hance (1865) | Sampson's St. John's Wort | Perennial herb | China, Japan, Southeast Asia | | |

## Sect. Santomasia

Santomasia (N.Robson) N.Robson contains a single species, H. steyermarkii.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. steyermarkii Standl. (1940) | | Unknown | Guatemala, Mexico | | |

## Sect. Taeniocarpium

Taeniocarpium Jaub. & Spach contains small wiry perennial herbs up to 1.1 meters tall.
| Binomial | Common Name | Type | Distribution |
| H. armenum Jaub. & Spach | | Perennial herb | Eastern Turkey, Armenia |
| H. confertum Choisy | | Perennial herb | Turkey to Lebanon, Cyprus |
| H. crenulatum Boiss. | | Dwarf shrub | Central Anatolia |
| H. fissurale Woronow | Cracked St. John's Wort | Perennial herb | Turkey |
| H. havvae Güner | | Perennial herb | Turkey |
| H. hirsutum L. | Hairy St. John's Wort | Perennial herb | Western Europe |
| H. kotschyanum Boiss. | | Perennial herb | Turkey |
| H. linarioides Bosse | | Perennial herb | Caucasia, Middle East, Turkey, Russia, Balkans |
| H. malatyanum Peșmen | | Perennial herb | Turkey |
| H. marginatum Woronow | | Perennial herb | Turkey |
| H. monadenum N.Robson | | Perennial herb | Southern Turkey |
| H. neurocalycinum Boiss. & Heldr. | | Perennial herb | Central Turkey |
| H. nummularioides Trautv. | | Perennial herb | Russia, Georgia, Turkey |
| H. nummularium L. | | Perennial herb | France, Spain, Italy (Extinct) |
| H. peshmenii Yıld. | | Perennial herb | Turkey |
| H. pruinatum Boiss. & Balansa | | Shrublet/ Perennial herb | Turkey, Georgia |
| H. pseudorepens N.Robson | | Perennial herb | Turkey |
| H. pulchrum L. | Slender St. John's Wort | Perennial herb | Western Europe |
| H. pumilio Bornm. | | Shrublet | Turkey |
| H. saxifragum N.Robson & Hub.-Mor. | | Perennial herb | Turkey |
| H. taygeteum Quézel & Contandr. | | Perennial herb | Greece |
| H. theodori Woronow | Theodor's St. John's Wort | Perennial herb | Azerbaijan |
| H. thymifolium Banks & Sol. | | Subshrub | Turkey, Syria, Lebanon, Israel |
| H. vaccinioides N.Robson | | Dwarf shrub | Turkey |
| H. venustum Fenzl | | Perennial herb | Lebanon, Turkey, Georgia, Armenia, Azerbaijan |

## Sect. Takasagoya

Takasagoya (Y.Kimura) N.Robson contains deciduous shrubs and shrublets that grow up to 1.5 m tall.
| Binomial | Common Name | Type | Distribution |
| H. formosanum Maxim. (1881) | Taiwanese St. John's Wort | Shrub | |
| H. geminiflorum Hemsl. (1895) | | Shrub | Taiwan, Philippines |
| H. nakamurai (Masam.) N.Robson (1973) | | Shrub | |
| H. senkakuinsulare Hatus. (1973) | | Shrub | Ryukyu Islands |
| H. subalatum Hayata (1911) | | Shrub | |

## Sect. Triadenioides

Triadenioides Jaub. & Spach contains 7 species. Its type species is H. pallens. H. haplophylloides has two subspecies: H. haplophylloides haplophylloides and H. haplophylloides devollense. The species of the section are found in the mountain ranges of Turkey and the Levant, and several are confined to the island of Socotra.
Triadenioides contains shrubs and shrublets that grow up to 60 centimeters tall. They grow prostrate to erect and the lower parts of the plant are deciduous. Those confined to Socotra lack dark glands, but the species in the Levant have red to black glands on the flower and sometimes leaves or stems. The leaves are either opposite or 3-whorled and are free and either sessile or petiolate. The species have between one and thirteen flowers that are stellate and have one style. They have 5 petals each which are spreading or erect. They have 3 stamen fascicles with many stamens and have 5 sepals.
| Binomial | Type | Distribution |
| H. fieriense N.Robson (1993) | Shrub | |
| H. haplophylloides Halácsy & Bald. (1893) | | |
| H. musadoganii Yıld. (2010) | | |
| H. pallens Banks & Solander | Shrublet | Turkey, Syria, Lebanon |
| H. scopulorum Balf.f (1882) | Shrub | |
| H. ternatum Poulter (1954) | Shrublet | Turkey |
| H. tortuosum Balf.f (1882) | Shrub/Shrublet | |

## Sect. Trigynobrathys

Trigynobrathys (Y. Kimura) N.Robson contains shrubs and subshrubs as well as annual and perennial herbs that are very diverse in size and shape.
| Binomial | Common Name | Type | Distribution |
| Subsection Connatum ||||||
| H. brasiliense Choisy | | Subshrub/annual herb? | Brazil, Paraguay, Bolivia, Argentina |
| H. caespitosum Cham. & Schltdl. | | Perennial/annual herb | |
| H. campestre Cham. & Schltdl. | | Subshrub | Brazil, Paraguay, Argentina, Uruguay |
| H. caprifoliatum Cham. & Schltdl. | | Subshrub | Brazil, Argentina |
| H. carinatum Griseb. | | Subshrub/annual herb | Brazil, Paraguay, Argentina, Uruguay |
| H. cavernicola L.B. Sm. | | Subshrub | Uruguay |
| H. connatum Lam. | | Subshrub/perennial herb | Brazil, Uruguay, Argentina, Paraguay, Bolivia |
| H. cordatum (Vell.) N.Robson | | Subshrub/perennial herb | Brazil |
| H. cumulicola (Small) P.B. Adams | Highlands Scrub St. John's Wort | Perennial herb | United States (Florida) |
| H. denticulatum Walter | Coppery St. John's Wort | Perennial herb | United States |
| H. denudatum A. St.-Hil. | | Shrub/subshrub | Brazil, Argentina |
| H. erythreae (Spach) Steud. | Sparse-leaved St. John's Wort | Perennial herb | United States |
| H. gramineum G.Forst. | Grassy St. John's Wort | Perennial/annual herb | Oceania, Vietnam, China, India, Hawaii |
| H. harperi R.Keller | Sharplobe St. John's Wort | Perennial herb | United States |
| H. legrandii L.B. Sm. | | Subshrub | Uruguay |
| H. linoides A. St.-Hil. | | Subshrub/annual herb | Brazil, Argentina, Uruguay |
| H. lorentzianum Gilg ex R. Keller | | Subshrub | Brazil, Paraguay, Argentina, Uruguay |
| H. microlicioides L.B. Sm. | | Subshrub | Brazil |
| H. myrianthum Cham. & Schltdl. | | Subshrub | Brazil, Argentina, Uruguay |
| H. polyanthemum Klotzsch ex Reichardt | | Subshrub | Brazil, Uruguay |
| H. rigidum A. St.-Hil. | | Shrub/subshrub | Brazil |
| H. salvadorense N.Robson | | Subshrub | Brazil |
| H. setosum L. | Hairy St. John's Wort | Perennial/annual herb | United States |
| H. silenoides Juss. | Sangrenaria | Perennial/annual herb | Chile, Peru, Ecuador, Colombia, Bolivia, Argentina |
| H. teretiusculum A. St.-Hil. | | Subshrub | Brazil, Paraguay |
| H. ternum A. St.-Hil. | | Subshrub | Brazil |
| H. virgatum Lam. | Sharpleaf St. John's Wort | | United States |
| Subsection Knifa ||||||
| H. anagalloides Cham. & Schltdl. | Creeping St. John's wort | Perennial/annual herb | Canada, United States, Mexico |
| H. aphyllum Lundell | | Annual herb | Belize |
| H. arenarioides A. Rich. | | Annual herb | Cuba |
| H. boreale (Britton) H. P. Bicknell | Northern St. John's Wort | Perennial/annual herb | Eastern Canada, New England |
| H. brevistylum Choisy | | Annual herb | Colombia, Ecuador, Peru, Bolivia, Argentina |
| H. canadense L. | Lesser Canadian St. John's Wort | Perennial/annual herb | United States, Canada |
| H. globuliferum R. Keller | | Perennial herb | Madagascar |
| H. gymnanthum Engelm. & A.Gray | Clasping-leaf St. John's Wort Small-flowered St. John's Wort | Annual herb | United States, Guatemala |
| H. humbertii Staner | | Perennial herb | Uganda, DRC, Rwanda, Burundi |
| H. japonicum Thunb. | Matted St. John's Wort | Annual herb | Asia, Oceania |
| H. killipii N.Robson | | Perennial herb | Colombia |
| H. lalandii Choisy | | Perennial herb | Africa |
| H. majus (A.Gray) Britton | Greater Canadian St. John's Wort | Perennial herb | Canada, United States (Introduced to W. Europe) |
| H. moranense Kunth | | Perennial/annual herb | Mexico |
| H. mutilum L. | Dwarf St. John's Wort | Perennial/annual herb | |
| H. oligandrum Milne-Redh. | | Perennial/annual herb | DRC, Zambia, Angola, Namibia |
| H. parvulum Greene | Sierra Madre St. John's Wort | Perennial/annual herb | Mexico, Hawaii |
| H. pauciflorum Kunth | Fewflower St. John's Wort | Subshrub/perennial herb | Mexico |
| H. paucifolium S. Watson | | Perennial herb | Mexico, United States |
| H. pedersenii N.Robson | | Wiry shrublet | Brazil |
| H. philonotis Schltdl. & Cham. | | Annual herb | Mexico, Guatemala, Honduras |
| H. pleiostylum C. Rodr. Jim. | | Annual herb | Brazil |
| H. pratense Schltdl. & Cham. | Sanguinaria | Perennial/annual herb | Mexico, Central America |
| H. pumilum Sessé & Moc. | | | Mexico |
| H. relictum N.Robson | | Subshrub | Colombia |
| H. scioanum Chiov. | | Perennial herb | Eastern Africa, DRC |
| H. thesiifolium Kunth | | Perennial herb | Costa Rica, Panama, Venezuela, Colombia |

## Sect. Tripentas

Tripentas (Casp.) N.Robson contains one long-stemmed perennial herb, H. elodes. Tripentas is sometimes separated into its own genus under the synonyms Elodes (Spach) W. Koch, Martia Sprengel, Perforaria Choisy, Spachelodes Y. Kimura, or Tripentas Casp.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. elodes L. (1759) | Marsh St. John's Wort | Perennial herb | | | |

## Sect. Umbraculoides

Umbraculoides N.Robson contains a single species, H. umbraculoides, for which the section is named. It is closely related to sect. Ascyreia.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. umbraculoides N.Robson (1985) | | Deciduous shrub | Mexico | | |

## Sect. Webbia

Webbia (Spach) R. Keller contains a large deciduous shrub that can grow up to 4 meters tall.
| Binomial | Common Name | Type | Distribution | Image | References |
| H. canariense L. (1753) | Canary Islands St. John's Wort Granadillo | Shrub/Tree | | | |

## Extinct

Hypericum fossils have been found from the Late Eocene to the present day, with the most commonly found part of the plant being the seeds due to their hardiness. However, a small number of leaves and even pollen have also been found as fossils. The oldest fossil recovered was a seed belonging to the species H. antiquum which was found in Northern Asia. This species is considered to be the common ancestor of the family Hypericaceae.
| Binomial | Fossil Status | Temporal Range | Location | Distribution |
| H. antiquum Balueva & Nikitin | Seeds | Neogene PreꞒ Ꞓ O S D C P T J K Pg N | Russia (Siberia) | |
| H. canatalense E. Reid | Seeds | Pliocene PreꞒ Ꞓ O S D C P T J K Pg N ↓ | France | |
| H. coriaceum Nikitin | Seeds | Miocene PreꞒ Ꞓ O S D C P T J K Pg N | Russia | Europe |
| H. danicum Friis | | Miocene PreꞒ Ꞓ O S D C P T J K Pg N | Denmark | |
| H. foveolatum Dorof. | Seeds | Pliocene PreꞒ Ꞓ O S D C P T J K Pg N ↓ | Belarus | Europe |
| H. miocenicum Dorof. | | Oligocene–Pliocene PreꞒ Ꞓ O S D C P T J K Pg N | | |
| H. holyi Friis | | Middle Miocene PreꞒ Ꞓ O S D C P T J K Pg N ↓ | Denmark | |
| H. rostriformum Jakub | Seeds | Miocene PreꞒ Ꞓ O S D C P T J K Pg N | Belarus | Europe |
| H. septestum Nikitin ex Arbuzova | | Miocene PreꞒ Ꞓ O S D C P T J K Pg N | Czech Republic, Russia | |
| H. tertiaerum Nikitin | | Oligocene–Pliocene PreꞒ Ꞓ O S D C P T J K Pg N | | |