Parnassia palustris

Family Parnassiaceae (also placed in Saxifragaceae)
Scientific name Parnassia palustris L.
Synonyms Parnassia palustris L. var. multiseta Ledebour; Parnassia parviflora de Candolle; Parnassia multiseta (Ledebour) Fernald
Common name (Japanese common name) ume-bachi-sou (ウメバチソウ, 梅鉢草 [meaning: apricot cups weed]), ezo-ume-bachi-sou (エゾウメバチソウ, 蝦夷梅鉢草 [meaning: Ezo apricot cups weed (Ezo = an old name of Hokkaido)])
(English common name) none
Distribution (Japan) Hokkaido, Honshu, Shikoku, Kyushu
(Other nations) Russia, Korea, China, Mongolia, India, Kazakhstan, Kyrgyzstan, Tajikistan, Caucasus, Europe, Algeria, Morocco, Canada, USA
Habitat Swamp or wet field
Chromosomal number 2n=18
Description Plants electing 7-15cm tall. Leaves 1-3.5cm wide. Flowers white 20-25mm across, flowering in August to October. Perennial plants.
Reference  Parnassia palustris L.
Parnassia palustris L. var. palustris
Parnassia palustris var. multiseta Ledebour
Preventions or remedies for arthritis (European Patent Application EP1407777/2005)

August 2006
at high marsh
August 2006
at high marsh
October 2008
at lowland swamp