虎克组 hu ke zu

Plants perennial, acaulescent to nearly so, with basifixed white hairs. Stipules membranous, free from petiole, nearly completely embracing stem but not connate behind it, high connate around petiole. Calyx tubular, gibbous at base. Petals pale sulfur-yellow, glabrous. Legumes strongly compressed from sides, valves thin but tough, with slender, vertical nerves, nearly completely 2-locular.

One species: Bhutan, China, India (Sikkim).