Japan Flora: Tufted acaulescent annual; leaves several, linear, 1-4.5 cm. long, 0.5-15 mm. wide, prominently acuminate, 3-nerved; peduncles 1-3, tufted, filiform, 8-15 cm. long, 4-ribbed; heads turbinate, about 3 mm. in diameter; involucral bracts 3-5, lanceolate-oblong, rather obtuse, minutely toothed on the upper margin, slightly longer than the disc flowers; re­ceptacle glabrous; floral bracts ovate-oblong, acute, glabrous; flowers few, 2 mm. long; staminate flowers with a spathelike, glabrous calyx minutely toothed along the upper margin; pistillate flowers with spathelike indistinctly toothed calyx sparsely ciliate on the upper margin, the petals 3, free, lanceo­late, with a black gland inside extending upward, the stigmas 3, longer than the style.

Honshu (Iwashiro Prov.).