Japan Flora: Glabrous perennial with thick roots; stems many from the stout caudex, much branched, with thickened nodes; leaves thick, ovate-oblong or narrowly ovate, 2-3 cm. long, 1-1.5 cm. wide, obtuse to mucronate, obliquely rounded to shallowly cordate at base, entire; cyathia in terminal and dense axillary cymes, the glands transversely oblong; capsules about 3 mm. across, smooth, glabrous; seeds smooth, tetrahedral- ellipsoidal, about 1.3 mm. long. Sept.-Oct. Grassy slopes near seashores.

Kyushu (Yakushima and Tanegashima). Ryukyus, Formosa, s. China, India, Malaysia, and Pacific Isis.