Desmodium laxiflorum DC.

Undershrub, 60-150 cm tall, stem woody, pubescent when young. Leaf trifoliolate, petiole 2.0-7.5 cm long, the terminal leaflets 7.0-15 cm long, 3.0-7.0 cm broad (lateral leaflets smaller), ovate, elliptic or broadly lanceolate, acute or subobtuse, glabrous above, appressly pubescent below, petiolules c. 2.5 mm long, stipels 6-7 mm long; stipules c. 10 mm long. Inflorescence terminal and axillary raceme, 15.0-25.0 cm long. Bracts and bracteoles linear, acute. Pedicel 5-7.5 mm long. Calyx 2.5-3.0 mm long, hispid, teeth slightly exceeding the tube. Corolla 6-7 mm long, vexillum white, wings and keel blue. Fruit 2.5-4.5 cm long, 6-10-jointed, both sutures slightly undulate, each article c. 4.5 mm long, pubescent, hairs hooked, minute.

Himalaya, India, S.E. Asia, China, Malaysia.

Distribution: Kashmir, Pakistan, India (Punjab, Kumaon, Garhwal, Bengal, Assam, Madhya Pradesh, Bombay, Madras), Nepal, Sikkim, Bhutan, Indonesia, Borneo, Philippines.

600-1000 m

Fl.Per.: August-October.

Desmodium laxiflorum là một loài thực vật có hoa trong họ Đậu. Loài này được DC. miêu tả khoa học đầu tiên.

疏花山蚂蝗（学名：Desmodium laxiflorum），又名大叶拿身草，为豆科山蚂蝗属下的一种多年生草本植物，匍匐生長。具三出複葉，花較其他同屬植物更爲稀疏，因此得名。