丹麻杆 dan ma gan

Cleidion ulmifolium Müller Argoviensis, Flora 47: 481. 1864; Discocleidion glabrum Merrill.

Shrubs 1.5-3 m tall. Branchlets reddish, yellowish pubescent when young, becoming glabrous. Stipules lanceolate, 3-5 mm; petiole 2-10 cm; leaf blade ovate or oblong-ovate, 6-15 × 3-10 cm, papery, drying purplish, base subtruncate or slightly cordate, with 1 or 2 pairs of glands, stipels lanceolate, 2-3 mm, with small marginal glands, margins serrulate, apex acuminate; basal veins 3. Inflorescences few branched, 10-22 cm; bracts narrowly ovate, 1.5-2 mm. Male flowers 3-11 per bract; pedicel ca. 2 mm; calyx globose, ca. 2 mm in diam., lobes 4; stamens 25-30. Female flowers 1 per bract; pedicel ca. 7 mm; calyx lobes (4 or)5, narrowly triangular, ca. 3 mm; disk annular; ovary glabrous; styles ca. 2 mm, 2-lobed. Capsule 6-7 mm in diam., glabrous. Seeds ovoid, ca. 4 mm, brownish, verrucate. Fl. May-Sep, fr. Jul-Oct.

Forests or thickets in valleys or on streamsides; 100-500 m. Fujian (Chong’an), Guangdong (Renhua), Jiangxi (Dexing, Wuyuan), Zhejiang (Kaihua, Yongjia) [Japan (Ryukyu Islands)].