Species in the genus Galium:

Galium japonicum / Kurumamugura
Galium kamtschaticum var. acutifolium / Oobanoyotsubamugura
Galium kikumugura / Kikumugura
Galium kinuta / Kinutasou
Galium odorata / Kurumabasou
Galium spurium var. echinospermon / Yaemugura
Galium trachyspermum / Yotsubamugura
Galium trifloriforme / Okukurumamugura
Galium trifidum ssp. colombianum / Hosobanoyotsubamugura
Galium verum ssp. asiaticum / Kibanakawaramatsuba
Galium verum ssp. asiaticum f. lacteum / Kawaramatsuba
　

Galium trifloriforme / Okukurumamugura オククルマムグラ

Galium trifloriforme is a perennial herb, 20-50cm tall, inhabiting forest floors in mountainous regions, with downward prickle-like hairs on stems and leaf's backside mid-ribs. The leaves are generally in whorls with six, each in the shape of a long-oblong, 2.5-4cm in length, with tips short and pointed - Cymes born on the stem tips set approximately ten white flowers in them. Corollas measure 2.5mm in diameter. They are aperture in four. Bloom time: June-July.