卵叶铁苋菜 luan ye tie xian cai

Acalypha gagnepainii Merrill; A. heterostachya Gagnepain; A. siamensis Gagnepain (1924), not Oliver ex Gage (1922).

Shrubs, 1-3 m tall. Branchlets yellowish pubescent when young; branches elongated, brownish, glabrescent. Stipules lanceolate, 2-4 mm, pilose; petiole 1-6 cm, villous; leaf blade ovate or long ovate, 4-13 × 2.5-7 cm, membranous, both surfaces puberulent along veins, base obtuse or broadly cuneate, margin coarsely serrate, apex acuminate; basal veins 3. Spike slender, axillary, bisexual or unisexual, 4-11 cm; peduncle subsessile or ca. 3 mm, pilose; female flowers 1-5 at base and male flowers distal, or all males, sometimes 1 or 2 female flowers without males; female bracts subcordiform, ca. 2 × 3 mm, 4- or 5-denticulate, pilose; male bracts scattered, ovate, ca. 0.5 mm, pilose. Male flowers glomerate; pedicel ca. 1 mm, pilose; sepals 4, ca. 1 mm; stamens 8. Female flowers subsessile; sepals (3 or)4, subtriangular, ca. 1 mm; ovary hairy, sparsely shortly echinate; style 2-2.5 mm, ca. 11-laciniate. Capsule 3-locular, 2.5-3 mm in diam., pilose and shortly softly few echinate. Seeds ovoid, ca. 2 mm. Fl. Mar-Aug.

Limestone forests, thickets; 200-500 m. SW Guangxi, S Yunnan [Myanmar, Thailand, N Vietnam].