Japanese white wake robin
Trillium tschonoskii Maximowicz
Trilliaceae, or Liliaceae (s.l.)
Sirobana-enreisou / Miyama-enreisou (シロバナエンレイソウ / ミヤマエンレイソウ, 白花延齢草 / 深山延齢草)
Lifeform: perennial herb
Distribution: the Himalayas - Sakhalin - Japan
Habitat: deciduous (or mixed) forests
Chromosome number: 2n = 20
Varieties
var. tschonoskii: the type
var. atrorubens Miyabe et Tatewaki (エゾノミヤマエンレイソウ): endemic to Hokkaido
var. himaliacum Hara
f. cryptopetalum Makino (コバナエンレイソウ)
Trillium tschonoskii
[Left] shoots. [Center] a flower and the peduncle (flower stalk). [Right] close-up of a flower. On the south slope of Mount Usu on May 13 2011.