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

110. Elatostema cuneiforme W. T. Wang, Acta Phytotax. Sin. 17(1): 107. 1979.

楔苞楼梯草 xie bao lou ti cao

Herbs perennial, monoecious, ca. 100 cm tall. Stems ascending or erect, simple or rarely branched, pubescent. Leaves alternate; nanophylls absent; stipules lanceolate, 10-14 × 3.5-4 mm, glabrous; with cystoliths, petiole 0-7 mm; leaf blade obliquely elliptic, 12-18 × 4-7.5 cm, herbaceous, major basal lateral veins asymmetric, 1 basal, the other arising above base, abaxial surface sparsely puberulent along nerves, adaxial surface sparsely puberulent, cystoliths conspicuous, dense; base with broader half broadly cuneate, margin dentate, apex cuspidate. Male inflorescences solitary, simple, 20-30 mm in diam.; peduncle 20-30 mm; receptacle nearly orbicular, 20-30 mm in diam.; bracts connate, ca. 0.8 mm; bracteoles broadly linear or linear. Female inflorescences solitary, oblong, 4-11 × 3-6 mm, sessile; receptacle oblong, 5-12 × 3.5-7 mm; bracts broadly ovate; bracteoles spatulate or linear. Male flowers 4-merous. Fl. Jun-Aug.

* Tropical rain forests, montane broad-leaved forests; 1800-2000 m. SE Xizang.

1 Male peduncles 1.2-2 mm thick; bracteoles cilioate.   110a var. cuneiforme
+ Male peduncles ca. 0.8 mm thick; bracteoles glabrous.   110b var. gracilipes


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