长果巴豆 chang guo ba dou

Croton caryocarpus Croizat.

Trees up to 18 m tall; indumentum with stellate scales; branches rather stout. Petioles 1.5-6 cm, apex with 2 cupular glands; leaf blade oblong, elliptic, or ovate-lanceolate, 10-25 × 2.5-8 cm, leathery, quite glabrous when old, base obtuse, margin entire or remotely repand-serrate, apex acuminate; lateral veins ca. 10. Inflorescence terminal, 10-25 cm, stellate-scaly. Male flowers: sepals 5, ovate-triangular, ca. 2 mm, stellate-scaly; petals 5, ovate-triangular, ca. 2 mm, puberulent; stamens 11 or 12; filaments villous. Female flowers: pedicels shorter; sepals 5, triangular, ca. 2.5 mm; petals reduced; disk annular; ovary ovoid; styles 3, 2-partite, slender. Capsules ovoid-ellipsoid or oblong, 2.5-3.5 cm, obscurely lobed. Seeds ca. 1.2 cm. Fl. and fr. almost throughout year.

Evergreen or mixed forests; below 1000 m. SE Yunnan (Jinping) [Bangladesh, Bhutan, India, Myanmar, Vietnam].