dcsimg

Description

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Annual herbs. Stems caulescent, erect or decumbent, puberulous. Leaves simple, alternate, usually petiolate, lamina elliptic, pubescent, margin serrate, apex acute, base attenuate, chartaceous. Capitulescences axillary, in clusters. Capitula discoid, homogamous, hemispherical, sessile, florets bisexual and fertile. Involucre imbricate. Florets 50–70; corollas purple to white, actinomorphic, glandular, corolla lobes 3–4. Anthers 3 or 4, syngenesious. Styles purple, 2-branched, inner surface covered with stigmatic papillae, outer surface covered with sweeping hairs reaching to below style bifurcation. Achenes turbinate, 3–4-angular, usually 3–5-ribbed, carpopodium present. Pappus coroniform, thick, in 1 series, persistent. Pollen lophate, 3-porate, without micropuncta. One species is recognized in Thailand.
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Sukhonthip Bunwong, Pranom Chantaranothai, Sterling C. Keeley
bibliographic citation
Bunwong S, Chantaranothai P, Keeley S (2014) Revisions and key to the Vernonieae (Compositae) of Thailand PhytoKeys 37: 25–101
author
Sukhonthip Bunwong
author
Pranom Chantaranothai
author
Sterling C. Keeley
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Struchium

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Struchium: Brief Summary

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Struchium is a genus of flowering plants in the evil tribe within the daisy family.

Species Struchium americanum Poir. - Jamaica Struchium sparganophorum (L.) Kuntze - Mesoamerica, South America, West Indies
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