Japan Flora: Stems rather slender, 20-50 cm. long, erect at base, arcuate above, often rooting and bearing new shoots at apex, densely leafy, pale green; branches much ramified, relatively short, slender, somewhat arcuate at the tip; leaves of sterile branches all alike, linear-subulate, entire, spreading to ascending, 3-4 mm. long, 0.2-0.3 mm. wide, attenuate to an awnlike tip; spikes solitary on the branch tips, sessile, nodding, ovoid to ovoid-cylindric, densely bracteate, 5-10 mm. long, about 3 mm. across; bracts deltoid, fimbriate, awnlike at the tip.               Wet sunny slopes in hills and mountains.

Hokkaido (Iburi Prov.), Honshu, Shi­koku, Kyushu. Ryukyus, Formosa, and the tropics of both hemispheres.