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Project Name Data (Last Modified On 6/3/2013)

Flora Data (Last Modified On 6/3/2013)
Genus Elephantopus L.
PlaceOfPublication Sp. P1. 814. 1753
Note TYPE: E. scaber L.
Synonym Orthopappus Gleason, Bull. New York Bot. Gard. 4: 237. 19106. TYPE: E. angustifolius Swartz.
Description Erect, perennial herbs; stems generally solitary. Leaves basal or cauline, alternate, basally attenuate, pinnately veined; petioles indistinct. Inflorescences solitary, terminal, bracteate panicles, spikes, or racemes, the heads in glomerules, the glomerules many-headed, hemispheric, subtended by 1 or more bracts. Heads with 2-4 florets; involucral bracts 8, similar, in 2 decussate series; receptacle convex, naked; flowers perfect, zygomorphic; corolla tubular-funnelform, the tube slender, the limb 5-parted, deeply so on the adaxial side; anthers 2-celled, sagittate at the base, apically appendaged; style branches slender, terete, slightly flattened adaxially at the base, strigulose throughout. Achenes obovoid, slightly flattened, 10-ribbed or -angled, strigulose or hispidulous; pappus in 1 series, occasionally scale-like, or usually of 5-many straight, equal, puberulent bristles.
Habit herbs
Distribution A genus of 25 species centered around the Caribbean but ranging throughout the tropics and warmer temperate regions of both hemispheres; absent from Europe.
Reference Clonts, J. A. 1972. A revision of the genus Elephantopus, including Orthopappus and Pseudelephantopus (Compositae). Ph.D. thesis, Mississippi State Uni- versity.
Key a. Inflorescence paniculate; pappus bristles fewer than 10. b. Leaves less than 3?/, times longer than wide, densely soft-puberulent beneath- ...... 3. E. mollis bb. Leaves more than 7 times longer than wide, not densely soft-puberulent beneath ...... 2. E. dilatatus aa. Inflorescence spicate, simple or sparingly branched; pappus bristles more than 20 ...... 1. E. angustifolius
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