Dendrocnide basirotunda (C. Y. Wu) Chew

Small trees, 5-7 m tall, 20-40 cm d.b.h., branchlets semiwoody; bark gray-green, sometimes purplish, lenticels elliptic; upper stem and branchlets appressed pubescent, soon glabrescent. Stipules caducous, broadly ovate, ca. 0.6-0.8 cm, leathery, densely puberulent abaxially; petiole 4-11 cm, sparsely appressed pubescent and armed with short stinging hairs; leaf blade dark green, broadly ovate or broadly elliptic, 11-22 × 7-16 cm, papery, 3-veined, lateral veins 5-8 each side, anastomosing before margin, tertiary veins subparallel, adaxial surface sparsely strigose or subglabrous, abaxial surface pubescent and sparsely armed stinging hairs on veins, base rounded or subcordate, margin entire or inconspicuously remotely serrulate, apex acuminate; cystoliths minutely punctiform, conspicuous adaxially. Inflorescences in distal axils of branchlets, long paniculate, slightly longer than petioles. Male flowers sessile, in bud 1.2 mm; perianth lobes 5, ovate, pubescent; stamens 5; rudimentary ovary obovoid, 0.4 mm. Female flowers 3 or 4 in a row on slightly fleshy flabellate peduncular receptacle, subsessile, ca. 1 mm; perianth lobes 4, unequal, 1 large, ca. 1 mm, 2 medium ca. 0.5 mm, ventral small, ca. 0.2 mm. Ovary ca. 1 mm; stigma straight, ligulate, ca. 2 mm; bracts ca. 0.3 mm. Achene orbicular-ovoid, oblique, compressed, ca. 2.5 mm, conspicuously verrucose; persistent perianth forming a minute cupule at base. Fl. Aug-Sep, fr. Sep-Oct.

S Yunnan [Myanmar, Thailand].

Mixed forests on limestone; 1000-1200 m.

Laportea basirotunda C. Y. Wu, Acta Phytotax. Sin. 6: 276. 1957.

Dendrocnide basirotunda là loài thực vật có hoa trong họ Tầm ma. Loài này được (C.Y.Wu) Chew mô tả khoa học đầu tiên năm 1969.

圆基火麻树（学名：Dendrocnide basirotunda）为荨麻科火麻树属的植物。分布在泰国、缅甸以及中国大陆的云南等地，生长于海拔1,000米至1,200米的地区，常生长在混交林中，目前尚未由人工引种栽培。