Gymnanthemum\according to Bunwong et al 2014

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Taxonavigation

Ordo: Asterales
Familia: Asteraceae

Name

Gymnanthemum Cass., Bull. Soc. Philom. Paris 1: 10. 1817. – Wikispecies link – ZooBank link – Pensoft Profile

Type

Gymnanthemum senegalense (Pers.) Sch.Bip.

Description

Small trees. Stems caulescent. Leaves simple, alternate, petiolate, lamina ovate, or elliptic, pubescent, margin serrate, apex acuminate, base attenuate, chartaceous. Capitulescences terminal or axillary, corymbose. Capitula discoid, homogamous, pedunculate. Florets bisexual and fertile. Involucre herbaceous, persistent, apex obtuse. Corolla purple to white, actinomorphic; lobes 5. Anthers 5, syngenesious. Styles purple, 2-branched, inner surface covered with stigmatic papillae, outer surface covered with sweeping hairs reaching to below style bifurcation. Achenes subterete or obovate, usually 10-ribbed, carpopodium present. Pappus in 2 series of bristles, persistent, the outer ones are shorter than the inner ones. Pollen subechinolophate, 3-colporate, with prominent micropuncta.
One species is recognized in Thailand.

Taxon Treatment

• Bunwong, S; Chantaranothai, P; Keeley, S; 2014: Revisions and key to the Vernonieae (Compositae) of Thailand PhytoKeys, 37: 25-101. doi