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Hickory (from Powhatan) is a type of tree, comprising the genus ''Carya'' ( "nut"). The genus includes 17–19 species of deciduous trees with pinnately compound leaves and large nuts. Five or six species are native to China, Indochina, and India (State of Assam), as many as 12 are native to the United States, four are found in Mexico, and two to four are from Canada. 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, long and 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 ''C. illinoinensis''; it is divided into two halves, which split apart when the seed germinates. Beaked hickory (''Annamocarya sinensis'') is a species formerly classified as ''Carya sinensis'', but now adjudged in the monotypic genus ''Annamocarya''. == Species and classification == In the APG system, genus ''Carya'' (and the whole Juglandaceae family) has been recently moved to the Fagales order. ;Asia *''Carya'' sect. ''Sinocarya'' – Asian hickories * *''Carya dabieshanensis'' M.C. Liu – Dabie Shan Hickory (may be synonymous with ''C. cathayensis'') * *''Carya cathayensis'' Sarg. – Chinese Hickory * *''Carya hunanensis'' W.C.Cheng & R.H.Chang – Hunan Hickory * *''Carya kweichowensis'' Kuang & A.M.Lu – Guizhou Hickory * *''Carya poilanei'' Leroy - Poilane's Hickory * *''Carya tonkinensis'' Lecomte – Vietnamese Hickory ;North America *''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 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 * * *''Carya ovata var. ovata'' – Northern Shagbark Hickory * * *''Carya ovata var. australis'' – Southern Shagbark Hickory, Carolina Hickory (syn. ''C. carolinae-septentrionalis'') * *''Carya laciniosa'' (Mill.) K.Koch – Shellbark Hickory, Shagbark Hickory, Bigleaf Shagbark Hickory, Kingnut, Big Shellbark, Bottom Shellbark, Thick Shellbark, Western Shellbark * *''Carya pallida'' (Ashe) Engl. & Graebn. – Sand Hickory * *''Carya texana'' Buckley – Black Hickory * *''Carya tomentosa'' (Poir.) Nutt. – Mockernut Hickory (syn. ''C. alba'') * *†''Carya washingtonensis'' - Manchester Extinct Miocene *''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 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hickory」の詳細全文を読む スポンサード リンク
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