Japan Flora: Branched annual; stems erect, 20-50 cm. long, recurved-puberalent on the angles, white-hairy on the nodes; leaves membranous, ovate to broadly so, or rhombic-ovate, 2-4 cm. long, 1-2.5 cm. wide, acute, coarsely toothed, glabrous or scattered appressed-pilose above, glabrous or scattered long-pubescent beneath near base, the petioles 1-3 cm. long; spikes 3-7 cm. long, rather loosely flowered, the axis white-pubescent on nodes, the pedicels 2-4 mm. long, thinly puberulent, nearly as long as the linear- lanceolate bracts; calyx 2-3 mm. long at anthesis, about 5 mm. long in fruit, teeth of upper lip broad; corolla about 4 mm. long, white or sometimes pinkish; nutlets ovate-orbicular, about 1 mm. long, obscurely reticulate.  Sept,-Oct. Grassy slopes in lowlands and hills;

Hokkaido, Honshu, Shikoku, Kyushu; rather common.  Korea, Manchuria, China, India, Formosa, and Malaysia.

var. nana (Hara) Ohwi. Stems thinly long-pubescent on the angles; leaves on both surfaces and axis of spikes loosely Iong- pubescent. Sept-Oct. Honshu, Kyushu. s. Korea and Formosa.