English: Pale Birthwort.
Habitat: part shade; 20 to 40 °C in summer, hardy to -10 °C; moderately humid all year round; acidic.
BotanyHerb; perennial, tuberous; suberect; 30 to 50 cm tall.
Root: large globose tuber, actually a compressed stem.
Leaves: dry up in summer.
Inflorescence: pale yellow, brownish with a dark throat.
Flowers: attractive; appear in clusters at the base of the perennial shoots; blooming early spring.