Japan Flora: Perennial; stems long-creeping or decumbent, much branched; leaves rather fleshy, obovate, 2-4 cm. long, 8-18 mm. wide, rounded to obtuse, long-cuneate at base, coarsely toothed toward tip, subsessile, 1-nerved; spikes axillary, unbranched, long-pedunculate, ellipsoidal to short-cylindric, 8-20 mm. long, 6-8 mm. across, very densely many-flowered, the bracts flabellate, about 2.5 mm. long, cuspidate; calyx short, flattened, with 2 narrow wings; corolla about 2 mm. across, slightly exserted between the bracts, subbilabiate, rose-purple; fruit broadly obovate, about 2 mm. long; nutlets slightly corky. July-Oct. Sandy seashores.
Honshu (Kanto Distr. and xvestw.), Shikoku, Kyushu; common. Ryukyus, Formosa, China, and widely distributed in the warmer Kgions of the world.