perennial herb;
Plant: 7-15 cm tall;
Root: Root woody;
Stem: The stem branches from the base, and the young branches have papillary protrusions and blunt short stinging hairs;
Leaves: stipules free, round or lanceolate, with membranous edges; petiole 2-4 mm long, with papillary protrusions and blunt short stinging hairs when young, winged, with a filiform tip at the apex; leaflets 1 pair, obovate Or oblong, 6-15 mm long, 3-5 mm wide, with a blunt apex;
Flowers: Flowers 1-2 are conceived in the leaf axils; the pedicels are 1-3 mm long, with papillae, which fall off later; the sepals are green, obovate-elliptical, about 5 mm long, with white edges; the petals and sepals are nearly equal in length. White, slightly orange; stamens shorter than petals, with scales on the middle and lower parts;
Fruit: Capsule lanceolate, apex acuminate, slightly ribbed, 1.5-2 cm long and about 5 mm thick;
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