Begonia muliensis T. T. Yu

This species is scarcely distinguishable from Begonia taliensis; it differs merely by the relatively shallowly lobed leaves.

Herbs, deciduous, 20-30 cm tall. Tubers 1-2 cm in diam. Leaves 1(or 2); stipules caducous, triangular-ovate, ca. 5 mm, membranous; petiole 14-21 cm, pilose; blade broadly cordate-ovate, asymmetric, 9-14 × 11-17 cm, abaxially sparsely hispidulous, adaxially sparsely hirsute, venation palmate, 7-veined, base cordate, slightly asymmetric, margin irregularly serrate, shallowly divided to ca. 1/3 of leaf length; lobes 5-7, apex acuminate. Inflorescences terminal, racemose at base, 16-30 cm tall, pilose; bracts ovate-lanceolate, ca. 5 mm, glabrous, apex acute. Staminate flowers: pedicel 8-12 mm; tepals 4, pinkish, outer 2 broadly ovate, ca. 10 × 9 mm, abaxially pilose, inner 2 oblanceolate, 9-11 × 3-4 mm; stamens numerous; filaments ca. 1.2 mm, fused at base; anthers broadly oblong, ca. 1.2 × 1 mm, apex emarginate. Pistillate flowers: pedicel 2-2.5 cm; tepals 3, outer 2 ovate, ca. 8 × 6 mm, abaxially pilose or subglabrous, inner 1 elliptic, ca. 6 × 3 mm; ovary glabrous, veins distinct, 3-loculed; placentae axile, bilamellate; styles 3, fused at base; stigmas 2-cleft, U-shaped. Capsule pendulous, obovoid-oblong to oblong, 8-10 × 5-6 mm, unequally 3-winged; abaxial wing triangular, ca. 1.5 × 1 cm; lateral wings smaller. Fl. Aug, fr. Sep. 2n = 24*.

SW Sichuan, Yunnan (Zhongdian).

● Forests, rocks in moist environments; 1800-2600 m.

Begonia muliensis est une espèce de plantes de la famille des Begoniaceae. L'espèce fait partie de la section Diploclinium. Elle a été décrite en 1948 par Tse Tsun Yu (1908-1986).

Begonia muliensis adalah spesies tumbuhan yang tergolong ke dalam famili Begoniaceae.

Spesies ini juga merupakan bagian dari ordo Cucurbitales.

Nama ilmiah spesies ini pertama kali diterbitkan oleh Tse Tsun Yu pada 1948.

Begonia muliensis là một loài thực vật có hoa trong họ Thu hải đường. Loài này được T.T.Yu mô tả khoa học đầu tiên năm 1948.

木里秋海棠（学名：Begonia muliensis）为秋海棠科秋海棠属下的一个种，是中国的特有植物。分布于中国大陆的四川等地，生长于海拔1,800米至2,600米的地区，多生长于河边岩石上、山沟岩石下或密林中潮湿处，目前已由人工引种栽培。