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Project Name Data (Last Modified On 5/30/2013)

Flora Data (Last Modified On 5/30/2013)
Genus Asclepias L.
PlaceOfPublication Sp. PI. 214. 1753
Note TYPE: A. syriaca L.
Description Perennial or rarely annual herbs, usually erect, glabrous or pubescent. Leaves opposite or verticillate. Inflorescences umbellate, many-flowered. Flowers vari- ously colored, but generally whitish or purplish; calyx 5-lobed, usually with 5-10 glandular structures at the bases of the sinuses; corolla rotate or reflexed at maturity, deeply 5-lobed, the lobes glabrous within, valvate in bud; corona of 5 usually cucullate segments which are joined to the corolla tube, each segment usually with a ligulate "horn" within, the filaments connate into a tube, the anthers terminated by an inflexed membrane; pollinia oblong, pendulous in the anther thecae; stigma pentagonal or 5-lobed, apically flattened. Follicles usually thick- ened, acuminate, the exocarp usually smooth or sometimes spinose-tuberculate; seeds comose.
Habit herbs
Distribution A large genus centered principally in temperate North and South America, Asclepias is represented by about 10 species in Central America and by one species in Panama.
Note The diminutive and infrequently collected Asclepias wood- soniana Standl. & Steyermark is to be expected along the Pacific coast of the Republic, as it is known from the savannas of Honduras, Costa Rica, and Co- lombia. It is a green-flowered, small herb, known from grasslands.
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