疏毛苎麻 shu mao zhu ma

Urtica pilosiuscula Blume, Bijdr. Fl. Ned. Ind. 491. 1826; Boehmeria platyphylla D. Don var. pilosiuscula (Blume) Handel-Mazzetti.

Subshrubs or herbs perennial, prostrate at base, 0.4-0.6 m tall; upper stems densely strigose or velutinous. Monoecious. Leaves opposite, unequal in size; stipules subulate-lanceolate, 5-10 mm; petiole 0.3-6.5 cm, velutinous; leaf blade obliquely ovate or obovate-elliptic, 3-11 × 1.5-6.2 cm, herbaceous, slightly rugulose, secondary veins 3 pairs along midvein, abaxial surface pubescent or velutinous along veins, adaxial surface strigose, base obliquely rounded or obtuse, margin serrulate, apex acuminate or shortly acuminate, serrulate. Glomerules unisexual, in short congested, often unbranched bisexual spikelike shoots, 0.8-2 cm; male glomerules distal. Male flowers 4-merous, sessile or subsessile; perianth lobes ca. 1 mm, sparsely puberulent, connate at base; rudimentary ovule ellipsoid, ca. 0.6 mm. Fruiting perianth narrowly obovoid, compressed, ca. 1 mm, smooth, strigose on shoulder, smooth, apex 2-toothed. Fl. Sep-Oct, fr. Oct-Nov.

Secondary forest margins, along streams, rocks; 700-1500 m. Hainan, Taiwan, Yunnan [Indonesia, Thailand].