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FOC | Family List | FOC Vol. 11 | Euphorbiaceae | Croton

22. Croton laevigatus Vahl, Symb. Bot. 2: 97. 1791.

光叶巴豆 guang ye ba dou

Shrubs or trees, up to 15 m tall; indumentum with dense, appressed stellate hairs; branches glabrescent, older branches silvery gray. Leaves clustered at stem apex; stipules subulate, 2-3 mm, caducous; petiole 1-5 cm; leaf blade elliptic or oblong-elliptic to oblanceolate, 7-25 × 3-9 cm, papery, abaxially with sparse stellate hairs, glaucous-gray when dried, adaxially glabrescent, base attenuate, base of midrib with abaxial sessile semiorbicular glands, margins subentire, usually with glands, bilateral apex acuminate. Inflorescences terminally clustered, 10-30 cm, persistently hairy. Male flowers: sepals ca. 2 mm, densely and appressed stellate-hairy; petals oblong, ca. 2 mm, margins woolly; stamens 12-15. Female flowers: sepals as in male; petals small; ovary with densely appressed stellate hairs. Capsules obovoid or trigonous, ca. 10 × 8 mm, densely hairy. Fl. Oct-Dec, fr. Dec-Mar.

● Dense or open forests; below 100-600 m. Hainan.


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