Begonia discreta Craib

The type was collected from Thailand.

Herbs, deciduous. Tubers ca. 7 mm in diam. Leaves basal; stipules caducous; petiole 3-8.5 cm; blade oblong or oblong-ovate, asymmetric, 4.5-13 × 3.5-9 cm, abaxially sparsely brown pilose on veins, adaxially sparsely brown pilose or subglabrous, venation palmate, 7(-9)-veined, base obliquely cordate, margin serrulate, apex acuminate or acute. Inflorescences terminal, 3.5-7 cm tall, subglabrous; bracts caducous. Staminate flowers: pedicel 5-10 mm; tepals 4, outer 2 elliptic, ca. 11 × 7 mm, outside remotely villous, inner 2 oblong-oblanceolate, ca. 10 × 2.5 mm, glabrous; stamens 12; filaments fused at base; anthers ca. 1 mm. Pistillate flowers: pedicel 5-10 mm; tepals similar to those of staminate flowers, but slightly smaller; ovary 3-loculed; placentae axile, bilamellate; styles 3, ca. 2 mm, fused to halfway; stigmas lunate. Capsule pendulous, narrowly obovoid, ca. 6 × 5 mm, unequally 3-winged; abaxial wing triangular, ca. 7 × 5 mm; lateral wings smaller. Fl. Sep-Oct.

Yunnan (Jinghong) [Thailand].

Scrubby vegetation; ca. 800 m.