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FOC | Family List | FOC Vol. 5 | Urticaceae | Elatostema

46. Elatostema attenuatum W. T. Wang, Bull. Bot. Lab. N. E. Forest. Inst., Harbin. 7: 44. 1980.

渐狭楼梯草 jian xia lou ti cao

Herbs perennial, monoecious, 20-25 cm tall, glabrous. Stems ascending or erect, simple. Leaves alternate; nanophylls absent; stipules lanceolate, 5-15 × 3-4 mm, with cystoliths; petiole absent; leaf blade oblanceolate, 9-15 × 2-4 cm, papery, major basal lateral veins asymmetric, 1 basal, the other arising above base, cystoliths conspicuous, dense; base attenuate, margin entire, apex acuminate. Male inflorescences solitary, in pairs, or 2-clustered, simple, 5-6 mm in diam.; peduncle 1-2 mm; receptacle 4-5 mm in diam.; bracts connate, ca. 2.5 mm; bracteoles cymbiform-oblanceolate. Female inflorescences solitary, in pairs, or 2-clustered, 4-8 mm in diam.; peduncle ca. 1 mm; receptacle 4-7 mm in diam.; bracts triangular; bracteoles linear. Male flowers 4-merous. Fl. May-Jun.

* Dense forests in valleys; 400-800 m. SE Yunnan.


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