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Heteroplexis Chang

异裂菊属

Description from Flora of China

Herbs, perennial, climbing or erect. Leaves alternate, cauline, shortly petiolate, margin entire or serrulate, pinnately veined. Capitula disciform, solitary or 2-4-fascicled at ends of branches, shortly pedunculate or sessile. Involucre cylindric or cylindric-campanulate; phyllaries numerous, 5- or 6-seriate, imbricate, ovate to ovate-oblong. Receptacles flat, alveolate, glabrous. Florets fertile. Ray florets female, 1-seriate, 4-7, lamina fine, apex 3-toothed; disk florets bisexual, 4-6, yellow, limb narrowly campanulate, lobes 5, unequal, outer 2 longer; stamens 5, exserted; anther base obtuse; style branch tip triangular. Achenes oblong or oblong-obovoid, sparsely strigillose; achenes of ray florets slightly compressed, angled adaxially, slightly convex abaxially, 1-ribbed on both sides; achenes of disk florets 2-ribbed on both sides. Pappus 1-seriate, of yellowish white, subequal, barbellate bristles.

One of us (Brouillet) has not seen specimens of this genus.

● Three species: China.

(Authors: Chen Yilin (陈艺林 Chen Yi-ling); Luc Brouillet)

濒危园 Endangered Plants Garden

Lower Taxon


 

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