Wedelia
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Authority
Acevedo-Rodríguez, Pedro & collaborators. 1996. Flora of St. John, U.S. Virgin Islands. Mem. New York Bot. Gard. 78: 1-581.
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Family
Asteraceae
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Scientific Name
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Description
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Genus Description - Rough-pubescent perennial herbs or shrubs; stems erect, less commonly weakly ascending, rarely prostrate. Leaves simple, blades ovate to less commonly linear, pubescent and also often glandular, 3-veined from base or from above base; petioles usually present, seldom winged. Inflorescence open, of a few to several terminal or axillary pedunculate heads, less commonly monocephalous; peduncles naked, pubescent. Heads radiate, rarely discoid; involucre 2-4-seriate; involucral bracts several, overlapping, graduated or subequal, the outer ones often foliar and longer than the inner ones; receptacle convex, paleate, the palea folded lengthwise. Ray flowers fertile, rarely sterile or absent; corollas commonly yellow, the limb apically 2- or 3-toothed. Disk flowers bisexual; corollas commonly yellow, shortly 5-lobed, the lobes often puberulent on both surfaces; anthers commonly black; style branches usually papillose. Achenes often oblong, but narrowed above into a neck, usually unwinged, pubescent, eglandular, the base with a large foot and often with 1 or 2 oil glands; pappus a fimbriate crown, commonly without awns.
Distribution and Ecology - A genus of about 60 species found from the southwestern United States, through Central America to tropical and subtropical South America and the West Indies, also Africa.