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FOC | Family List | FOC Vol. 12 | Sterculiaceae | Helicteres

8. Helicteres viscida Blume, Bijdr. 79. 1825.

粘毛山芝麻 nian mao shan zhi ma

Shrubs, up to 2 m tall. Branchlets puberulent when young, glabrescent. Petiole 0.3-1 cm, hairy; leaf blade ovate or nearly circular, 6-15 × 4.5-8.5 cm, sparsely stellate adaxially, densely whitish stellate tomentose, basal veins 5-7, base cordate, margin irregularly dentate, apex long acuminate, usually shallowly lobed from middle. Flowers solitary or cymose, axillary. Pedicel articulate. Calyx tubular, 15-18 mm, densely pale stellate villous and puberulent, 5-lobed, lobes acute. Petals 5, white, unequal to each other in length, spatulate. Stamens 10; staminodes 5. Ovary verrucose, hairy; ovules ca. 8 per locule. Capsule cylindric, 2.5-3.5 × 1-1.2 cm, apex acute, densely stellate villous and up to 4 mm long hairs. Seeds rhomboid, ca. 2 × 1 mm, with tiny longitudinal grooves. Fl. May-Jun.

Bushlands; 300-900 m. Hainan, Yunnan [Indonesia, Laos, Malaysia, Myanmar, Thailand, Vietnam].


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