椴叶山麻杆 duan ye shan ma gan

Stipellaria tiliifolia Bentham, Hooker’s J. Bot. Kew Gard. Misc. 6: 4. 1854.

Shrubs or small trees, 2-8 m tall, dioecious. Branchlets densely pubescent. Stipules lanceolate, 6-7 mm; petiole 6-20 cm; leaf blade ovate-rhombic to broadly ovate, 10-17 × 6-16 cm, papery, abaxially pubescent, adaxially pubescent along veins, base cuneate or subtruncate, with 4 glands, stipels lanceolate, 2.5-4 mm, margins serrate, apex acuminate to caudate; basal veins 3. Plants dioecious. Male inflorescences ± cauliflorous, unbranched, 5-9 cm, pubescent; bracts ovate, 2-2.5 mm. Male flowers 7-11-fascicled; pedicel ca. 1 mm; sepals 3, ca. 1.5 mm; stamens 8. Female inflorescences terminal, unbranched or few branched, 8-15 cm, pubescent; bracts triangular, ca. 6 mm. Female flowers: sepals 5(or 6), subovate, unequal, 3-4 mm, puberulent, one with basal gland; ovary globose, tomentose; styles 3, filiform, 7-11 mm, connate for 1.5-3 mm. Capsule ellipsoid, 6-8 mm in diam., puberulent, tubercled. Seeds subcylindric, ca. 8 mm, brown, rugose. Fl. Mar-Jun, fr. Jun-Sep.

Forested or scrubby slopes or valleys; 200-1300 m. W Guangxi, S Guizhou, S Yunnan [Bangladesh, Bhutan, NE India, Malaysia (peninsular), Myanmar, Thailand, Vietnam].