光梗阔苞菊 guang geng kuo bao ju

Herbs or subshrubs, procumbent to ascending. Stems well branched, sulcate-striate, glabrous, rarely sparingly puberulent. Leaves sessile, obovate to oblanceolate, 3-5 × 0.7-1.7 cm, glabrous on both surfaces, base gradually narrowed, margin irregularly and sparsely dentate, apex obtuse to rounded; upper leaves smaller and narrower. Capitula 6-8 mm in diam. when fresh, to 10 mm in diam. when dried, ca. 7 mm, shortly pedunculate or sessile, densely congested in terminal corymbs. Involucre ovoid to broadly campanulate; phyllaries 5- or 6-seriate, glabrous, outer ones broadly ovate, 2.5-4 × 2-3 mm, subentire, apex obtuse to rounded, inner linear to lanceolate, 4-5 × 0.5-1 mm, margin subentire, apex acute. Receptacle flat, foveolate. Marginal florets numerous; corolla filiform, narrowed apically, 3.5-4 mm, glandular; achenes reddish brown, with pale ribs, cylindric, 1-1.4 × 0.2-0.3 mm, appressed strigillose and glandular; pappus nearly as long as corolla. Central florets 18-22; corolla 4-5 mm, 5-lobed, lobes triangular, glandular; achenes yellowish, cylindric, grooved, 0.8-1.2 × 0.4-0.5 mm, strigillose; pappus shorter than corolla. 2n = 40.

Coastal brackish areas and tidal flats, often associated with mangroves and near graveyards on seashores. Guangdong, Guangxi, Hainan, Taiwan [Vietnam].