Species in the genus Eriocaulon:

Eriocaulon cinereum / Kurohoshikusa
Eriocaulon decemflorum / Itoinunohige
Eriocaulon miquelianum / Inunohige
Eriocaulon robustius / Hirohainunohige
Eriocaulon sieboldtianum / Hoshikusa
Eriocaulon taquetii / Nippon'inunohige

Eriocaulon sieboldtianum / Hoshikusa ホシクサ

Eriocaulon sieboldtianum is an annual that occurs in paddies or wetlands. Leaves measure 3-8cm long, 1-2mm wide, and linear-shaped. Flower stalks grow to 4-15cm tall, with tips with single gray-white to pale gray-brown head flowers. The flower heads are about 4mm in width, egg-like spherical, and have gray-white involucral bracts that are shorter than them. The male flower's anthers are white, and the female's sepals are two in number. Petals do not exist. Bloom time: August-September.