''Calycocarpum'' (cupseed) is a
monotypic genus of plants in the family
Menispermaceae. The only species currently accepted is ''Calycocarpum lyonii'' endemic to the southeastern United States.
''Calycocarpum lyonii'' has been reported from
Texas,
Louisiana,
Oklahoma
Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...
,
Arkansas, southeastern
Kansas,
Missouri, southern
Illinois, southern
Indiana,
Kentucky,
Tennessee,
Mississippi,
Alabama, Georgia, northwestern
Florida and southern
South Carolina. It grows mostly along stream banks in deciduous forests at elevations less than 350 m.
[Flora of North America vol 3](_blank)
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''Calycocarpum lyonii'' is a vine climbing over other vegetation, often to the tops of tall forest trees. Leaves are broad, pentagonally lobed, up to 30 across and 25 cm long. Flowers are borne in racemes or panicles
A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are o ...
up to 35 cm long. Drupes are green, drying black, spherical to ellipsoid, up to 25 mm long.
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References
{{Taxonbar, from=Q3502199
Menispermaceae genera
Flora of the United States
Monotypic Ranunculales genera
Menispermaceae