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Mitracarpus polycladus
''Mitracarpus polycladus'' is a rare species of flowering plant in the coffee family known by the common name cana gorda girdlepod. It is native to Puerto Rico, where it is known only from the Guánica Commonwealth Forest in Guánica.〔(''Mitracarpus polycladus''. ) Center for Plant Conservation.〕 It can also be found on the island of Saba. It grows in coastal scrub forest and dwarf forest with limestone gravel substrates.〔 Other plants in the habitat include ''Bucida buceras'', ''Bursera simaruba'', ''Exostema caribaeum'', ''Coccoloba microstachya'', ''Plumeria alba'', and ''Pilosocereus royenii''.〔
This is a perennial herb with many erect or spreading branches growing up to about 45 centimeters tall. The linear or lance-shaped leaves are up to 4.5 centimeters long. The inflorescence is a rounded head of tiny white flowers.〔USFWS. (Determination of endangered status for three Puerto Rican plants. ) ''Federal Register'' September 9, 1994.〕
This is a federally listed endangered species of the United States. The plant is threatened by road construction and maintenance, and its small population size makes it vulnerable to extinction.〔
== References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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