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

5. Helicteres elongata Wallich ex Masters in J. D. Hooker, Fl. Brit. India. 1: 365. 1874.

长序山芝麻 chang xu shan zhi ma

Shrubs, ca. 1 m tall. Branchlets very slender, stellate puberulent; upper leaves of fertile shoots reduced to a lax thyrse. Stipules linear, ca. 5 mm, caducous; petiole 0.6-1.3 cm; leaf blade oblong-lanceolate or oblong-ovate, 5-11 × (2-)2.5-3.5(-4) cm, stellate puberulent and villous abaxially, sparsely stellate adaxially, base obliquely rounded, margin irregularly dentate, apex acuminate. Inflorescence racemelike, axillary or terminal, as long as or longer than leaves, many-flowered. Epicalyx lobes linear. Calyx tubelike campanulate, ca. 5 mm, 5-lobed, lobes triangular, persistent, puberulent. Petals 5, yellow, 1 petal with auriculate appendix and central line of hairs. Androgynophore hairy. Stamens 10. Ovary 5-locular, hairy; ovules ca. 10 in each locule. Capsule long cylindric, apex acute, 2-3.8 cm, densely gray-yellow shaggy. Fl. Jun-Oct.

Dry grasslands, roadsides; 200-1600 m. NW and W Guangxi, S and SE Yunnan [Bangladesh, ?Bhutan, India (Darjeeling, ?Sikkim), Myanmar, Thailand].


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