Notes For Reference:-

Species, Varieties, or Forms in the Genus Cypripedium:

Cypripedium japonicum / Kumagaisou
　

Cypripedium japonicum / Kumagaisou クマガイソウ

Cypripedium japonicum is a perennial orchid species generally occurring in cryptomeria or bamboo forests, with its rhizomes extending sideways. Stems, 20-40cm tall, have luxuriant white hair and some sheath-like small leaves at the bases. Leaves, 10-20cm in diameter, are of a fan-shaped circle, with prominent vertical wrinkles spreading out towards the margins from the leaf bases. Flowers are 3-5cm long and shaped like bags, with light red-purple blooms at the stem ends. Very rare. Bloom time: April-May.