page_title: Hickory
section_title: North American hickories
hierarchical_section_title: Hickory / Species and classification / North American hickories
caption_attribution_description: English: https://www.inaturalist.org/photos/8620081
context_page_description: Hickory is a type of tree, comprising the genus Carya, which includes around 18 species. Five or six species are native to China, Indochina, and India, as many as twelve are native to the United States, four are found in Mexico, and two to four are from Canada. A number of hickory species are used for products like edible nuts or wood.
  Hickories are temperate rain forest trees with pinnately compound leaves and large nuts. Hickory flowers are small, yellow-green catkins produced in spring. They are wind-pollinated and self-incompatible. The fruit is a globose or oval nut, 2–5 cm long and 1.5–3 cm diameter, enclosed in a four-valved husk, which splits open at maturity. The nut shell is thick and bony in most species, and thin in a few, notably the pecan; it is divided into two halves, which split apart when the seed germinates.
context_section_description: Carya sect. Carya – typical hickories
  Carya floridana Sarg. – scrub hickory
  Carya glabra (Mill.) Sweet – pignut hickory, pignut, sweet pignut, coast pignut hickory, smoothbark hickory, swamp hickory, broom hickory
  Carya laciniosa (Mill.) K.Koch – shellbark hickory, shagbark hickory, bigleaf shagbark hickory, kingnut, big shellbark, bottom shellbark, thick shellbark, western shellbark
  Carya myristiciformis (F.Michx.) Nutt. – nutmeg hickory, swamp hickory, bitter water hickory
  Carya ovalis (Wangenh.) Sarg. – red hickory, spicebark hickory, sweet pignut hickory (treated as a synonym of C. glabra by Flora N. Amer.)
  Carya ovata (Mill.) K.Koch – shagbark hickory
  C. o. var. ovata – northern shagbark hickory
  C. o. var. australis – southern shagbark hickory, Carolina hickory (syn. C. carolinae-septentrionalis)
  Carya pallida (Ashe) Engl. & Graebn. – sand hickory
  Carya texana Buckley – black hickory
  Carya tomentosa (Poir.) Nutt. – mockernut hickory (syn. C. alba)
  †Carya washingtonensis Manchester – Miocene of Kittitas County, Washington
  Carya sect. Apocarya – pecans
  Carya aquatica (F.Michx.) Nutt. – bitter pecan or water hickory
  Carya cordiformis (Wangenh.) K.Koch – bitternut hickory
  Carya illinoinensis (Wangenh.) K.Koch – pecan
  Carya palmeri W.E. Manning – Mexican hickory
caption: Nuts of Carya texana (black hickory)
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