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What shape is the purple-backed begonia?
Nervilia fordii is a perennial herb with a height of 10 ~ 20cm, and the whole plant is smooth and hairless. Above-ground stems are very short or absent. Underground bulbs are white and fleshy, with a diameter of 0.5 ~ 2.5 cm, and there are several ring-shaped knots and root shedding marks on the surface. There are 2 ~ 4 transverse rhizomes on the nodes of vertical stems, which are about 10 ~ 15 cm long. There are 2 ~ 3 mm long white root hairs at the top of the transverse rhizome, which expand to form new bulbs. Bulbs and rhizomes can grow several fibrous roots 2 ~ 4 cm long. Basal leaves, usually only 1 leaf, at least 2-3 leaves, broadly ovoid, slightly wider than long, 5- 10 cm long and 8- 14 cm wide, tapering at the apex, heart-shaped at the base, full or slightly wavy at the edge,18-at the base. Racemes; Corolla pendulous, 5 petals. Capsule length: about 65438 0.5 cm, dark brown; Most seeds are small, powdery and yellow.

Nervilia fordii