Begonia tengchiana C. I Peng & Y. K. Chen

Herbs. Rhizomes to 2.1 cm in diam. Stems 38-80 cm tall, to 1.8 cm in diam. Leaves basal and cauline; stipules caducous, ovate to broadly ovate, to 2.4 × 1.9 cm, margin entire, apex acuminate; petiole glabrous, 7-23 cm; blade ovate to suborbicular, 9-25 × 7-18 cm, abaxially glabrous, adaxially sparsely scaberulous, venation palmate to palmate-pinnate, 6-9-veined, base oblique, cordate, margin remotely irregularly serrate or denticulate, apex acuminate. Inflorescences 10-24 cm; peduncle to 18 cm; bracts caducous, ovate to broadly ovate, 0.7-1.8 cm × 4-13 mm, thickly papery, glabrous, margin serrate, apex acute. Staminate flowers: tepals 4, margin slightly irregularly dentate, outer 2 broadly orbicular to orbicular, 1.1-2.3 × 0.9-2.2 cm, abaxially strigillose, inner 2 oblanceolate to narrowly obovate, 1-2.1 cm × 5-11 mm; stamens 39-68; anthers broadly oblanceolate to narrowly obovate, 1.9-2.3 mm; filaments 1.2-2.6 mm. Pistillate flowers: bracteoles in pairs, ca. 1 cm, narrowly lanceolate; tepals 5(or 6), unequal or subequal, narrowly obovate to very broadly obovate, largest 0.9-1.9 × 0.6-1.7 cm, smallest 0.7-1.6 cm × 3-9 mm; ovary subglabrous, locules 3; placentae axile, bilamellate; styles 3, 4.2-5.1 mm, stigmas 2-cleft, spiraled. Capsule nodding, trigonous, unequally 3-winged; abaxial wing shallowly triangular, to 5 mm; lateral wings to 3 mm. 2n = 82*.

S Taiwan.

● Forests; 1500-1800 m.

Begonia tengchiana est une espèce de plantes de la famille des Begoniaceae.

Begonia tengchiana adalah spesies tumbuhan yang tergolong ke dalam famili Begoniaceae. Spesies ini juga merupakan bagian dari ordo Cucurbitales. Spesies Begonia tengchiana sendiri merupakan bagian dari genus Begonia. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh C.I Peng & Y.K.Chen.

Begonia tengchiana là một loài thực vật có hoa trong họ Thu hải đường. Loài này được C.I Peng & Y.K.Chen mô tả khoa học đầu tiên năm 2005.