The other species in the genus Ischaemum:

Ischaemum anthephoroides / Kekamonohashi
Ischaemum aristatum var. glaucum / Kamonohashi
　

Ischaemum aristatum var. glaucum / Kamonohashi カモノハシ

Ischaemum aristatum var. glaucum is a perennial herb, 30-70cm in height, occurring in sandy soil on shores or wetlands near the seashores. Stems, slender, grow in clusters. Leaves are 15-30cm long, 0.5-1cm wide, in a linear shape, and hairless or with sparse hairs. Ligules are short. Inflorescences measure 4-7cm long and 5mm wide, and spikelets are 5-6mm long, in a broad lanceolate shape, with no awns. Bloom time: July-November.