Species in the genus Lamium:

Lamium album var. barbatum / Odorikosou
Lamium album var. barbatum(white) / Shirobanaodorikosou
Lamium ambiguus / Manekigusa
Lamium amplexicaule / Hotokenoza
Lamium hybridum  / Momijibahimeodorikosou
Lamium purpureum / Himeodorikosou
Lamium purpureum f. albiflorum / Shirobanahimeodorikosou
　

Lamium purpureum f. albiflorum / Shirobanahimeodorikosou シロバナオドリコソウ

Lamium purpureum f. albiflorum, a white form of its original species, is a biennial herb rarely found in the country. Its stems are square and grow to 10 to 25cm in height. Leaves are of opposite phyllotaxis,1.5-3cm long, circular-ovate, with obtuse serrations on margins and prominent small veins forming a surface network. The leaves on the upper portion are dense. Labiate flowers, about 1cm long, closely set themselves on leaf axils. Bloom time: April-May.