Question: What type of plants are Galium odoratum and Chadsia?

Context articles: Alyxia oliviformis
Zoophily
Galium migrans
Galium tunetanum
Galium odoratum
Galium ambiguum
May wine
Dipteryx odorata
Chadsia
Galium clementis

Alyxia oliviformis, known as Maile (pronounced "MY-lĕ") in Hawaiian, is a species of flowering plant in the dogbane family, "Apocynaceae", that is native to Hawaii.
 It grows as either a twining liana, scandent shrub, or small erect shrub, and is one of the few vines that are endemic to the islands.
 The binomial nomenclature means "chain resembling olive" in Latin.
 The leaves are usually ternate, sometimes opposite, and can show both types on the same stem.
 Flowers are quite inconspicuous and have a sweet and light fragrance of honey.
 The bark is most fragrant and exudes a slightly sticky, milky sap when punctured, characteristic of the "Apocynaceae" family.
 The entire plant contains coumarin, a sweet-smelling compound that is also present in vanilla grass ("Anthoxanthum odoratum"), woodruff ("Galium odoratum") and mullein ("Verbascum" spp.)
.
 Fruit are oval and dark purple when ripe.
 "Maile" is a morphologically variable plant and the Hawaiian names reflect this (see Ethnobotany section).
Zoophily is a form of pollination whereby pollen is transferred by animals, usually vertebrates but may include invertebrates, particularly by hummingbirds and other birds, and bats, but also by monkeys, marsupials, lemurs, bears, rabbits, deer, rodents, lizards and other animals.
 Zoomophilous species, like entomophilous species, frequently evolve mechanisms to make themselves more appealing to the particular type of pollinator, e.g. brightly colored or scented flowers, nectar, and appealing shapes and patterns.
 These plant animal relationships are often mutually beneficial because of the food source provided in exchange for pollination.
 Zoophilous species include "Arctium", "Acaena", and "Galium aparine'
Galium migrans is a species of flowering plant in the family Rubiaceae.
 Following a revision of the genus "Galium", the distribution of "Gallium migrans" is now believed to be restricted to South Australia.
 Plants in New South Wales that were formerly identified as this species are currently identified as "Galium leptogonium".
Galium tunetanum, the Tunisian bedstraw, is a species of plants in the Rubiaceae.
 It is native to Tunisia, Algeria, Morocco, Spain (Málaga Province), and the island of Sicily.
Galium odoratum, the sweetscented bedstraw, is a flowering perennial plant in the family Rubiaceae, native to much of Europe from Spain and Ireland to Russia, as well as Western Siberia, Turkey, Iran, the Caucasus, China and Japan.
 It is also sparingly naturalized in scattered locations in the United States and Canada.
 It is widely cultivated for its flowers and its sweet-smelling foliage.
Yolla Bolly bedstraw is a species of plants in the family Rubiaceae, native to British Columbia, northern California and southeastern Oregon.
 It has for years been known by the scientific name Galium ambiguum, but under the international rules of nomenclature this use of the name is unacceptable because it was already used for a French plant before Wight applied it to this American species.
 The provisional name "Galium stebbinsii" has been suggested, but this is at yet (May 2014) unpublished, so another name could eventually be chosen instead.
May wine, also known as Maitrank, Maiwein, Maibowle and Waldmeisterbowle, is the name of a German beverage that uses aromatized wine as a base ("see sangría").
 May wine is served in the spring, traditionally on the May Day holiday.
 The base is made by steeping the fragrant creeping herb sweet woodruff ("Galium odoratum", sometimes called "Asperula odorata", known in Germany as "Waldmeister") that grows in the forests of Northern Europe in a white German wine.
 It is the specialty of the town of Arlon, in the south of Belgium.
Dipteryx odorata (commonly known as "cumaru" or "kumaru") is a species of flowering tree in the pea family, Fabaceae.
 The tree is native to Central America and northern South America.
 Its seeds are known as tonka beans (sometimes tonkin beans or tonquin beans).
 They are black and wrinkled and have a smooth, brown interior.
 They have a strong fragrance similar to sweet woodruff ("Galium odoratum") due to their high content of coumarin.
Chadsia is a genus of flowering plants in the legume family, Fabaceae.
 It belongs to the sub family Faboideae.
Galium clementis is an uncommon species of flowering plant in the coffee family known by the common name Santa Lucia bedstraw.
 It is endemic to the Santa Lucia Mountains of central California.
 This is a mat-forming perennial herb forming carpetlike dull green patches amongst the rock litter.
 The thick leaves are arranged in whorls of four, or occasionally six, about the stem.
 The foliage is covered thickly in gray hairs.
 The plant is dioecious, with male plants producing small clusters of staminate flowers and female plants producing solitary pistillate flowers; both types of flower are generally yellow.
 The fruit is a berry covered in soft hairs.