Polygonum posumbu, Hamilt. Dwarf compact perennial, with long-creeping st. which is ascendent or decumbent and simple or branched: lvs. dark green and shining, 1-3 in. long, stalked, broad-lanceolate and narrow- acuminate, glabrous or somewhat hairy, ciliolate; stipules with stiff hairs longer than the sheath: fls. small, rose-colored, in many erect filiform racemes or spikes that are sometimes several inches long. Himalaya and to China and Japan.