毛水苏 mao shui su

Stachys aspera Michaux var. baicalensis (Fischer ex Bentham) Maximowicz; S. baicalensis var. hispida (Ledebour) Nakai; S. japonica Miquel f. villosa Kudo; S. palustris Linnaeus var. hispida Ledebour; S. riederi Chamisso var. hispida (Ledebour) H. Hara; S. ringens Oettingen.

Stems densely retrorse to patent hispid on angles and nodes, glabrous elsewhere. Leaf blade adaxially sparsely hispid, abaxially hispid along veins otherwise glabrous. Calyx densely villous-hispid along veins and margin.

Wet grassy areas, riverbanks; 400-1700 m. Heilongjiang, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi [Russia].