Carex ischnostachya is an herbaceous graminoid plant in the sedge family (Cyperaceae). It is native to the eastern Asia, where it is found in China, Japan, and Korea.[1] Its natural habitat is in forest openings in wet areas, in hills or mountains.[2] It is a common species, and is often found along roadsides or trails.[2] [3]
Carex ischnostachya is a rhizomatous perennial. It can be distinguished from other Carex in section Confertiflorae by its short, awnless, and broadly ovate female glumes, in combination with its sub-erect perigynia.[4] It produces flowers and fruits from April to June.