The other species in the genus Ischaemum:

Ischaemum anthephoroides / Kekamonohashi
Ischaemum aristatum var. glaucum / Kamonohashi
　

Ischaemum anthephoroides / Kekamonohashi ケカモノハシ

Ischaemum anthephoroides is a 30-80cm tall perennial herb growing in sandy soil on seashores. Stems are thick and stiff, with short hairs on their nodes. Leaves are a little broader than Ischaemum aristatum var. glaucum, 5-39cm long and 0.8-1.2cm, and generally have hairs on both surfaces. Inflorescences are longer than Ischaemum aristatum var. glaucum, 6-12cm long and 6-8mm wide. Spikelets measure 7-8mm long, broadly obovate, with many long white hairs. Bloom time: July-September.