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FOC | Family List | FOC Vol. 16 | Convolvulaceae | Argyreia

19. Argyreia osyrensis (Roth) Choisy in A. de Candolle, Prodr. 9: 334. 1845.

聚花白鹤藤 ju hua bai he teng

Shrubs scandent. Stems terete; axial parts densely whitish, gray, or yellowish tomentose. Petiole 2-5 cm; leaf blade ovate or broadly ovate to nearly circular, 4-12 X 4-10 cm, abaxially densely gray tomentose, woolly, or villous, adaxially ± strigose-villous or glabrescent, base cordate, apex acute or obtuse; lateral veins 7-11 pairs. Cymes capitate; peduncle 2.5-6 cm; bracts ± persistent, broadly obovate, spatulate, or circular, 0.8-1.2 cm, tomentose abaxially, apex obtuse or truncate. Flowers sessile or subsessile. Sepals unequal, tomentose abaxially; outer 2 obovate or spatulate, 9-10 mm, apex obtuse; inner 3 oblong, 5.5-8 mm, apex obtuse, glabrous adaxially, apex obtuse. Fruiting sepals enlarged, red, concave. Corolla pink, tubular-campanulate, 1.2-1.5 cm; limb deeply 5-lobed; lobes narrowly ovate, emarginate, midpetaline bands pubescent. Stamens and pistil exserted; filaments pubescent basally. Ovary glabrous, 2-loculed. Berry enclosed by calyx, red, globose, 6-8 mm in diam. Seeds 1 or 2, ± globose, subglabrous.

SW Guangxi, Hainan, S Yunnan [?Bangladesh, ?Cambodia, India, Indonesia, Laos, ?Malaysia, Myanmar, Sri Lanka, Thailand, Vietnam]

1 Leaf blade sparsely strigose-villous adaxially, densely gray tomentose or woolly abaxially   19a var. osyrensis
+ Leaf blade densely strigose-villous adaxially, densely gray villous abaxially   19b var. cinerea

Lower Taxa


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