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| September 2009 at a nursery |
| Family | Parnassiaceae (also placed in Saxifragaceae) |
| Scientific name | Parnassia foliosa Hooker f. & Thomson |
| Synonyms | Parnassia foliosa Hooker f. & Thomson subsp. nummularia (Maximowicz) Kitamura & Murata; Parnassia foliosa Hooker f. & Thomson var. nummularia (Maximowicz) T.Itô; Parnassia nummularia Maximowicz ex Drude |
| Common name | (Japanese common name) shira-hige-sou (シラヒゲソウ, 白髭草 [meaning: white beard weed]) |
| (English common name) none | |
| Distribution | (Japan) Honshu, Shikoku, Kyushu |
| (Other nations) China, India | |
| Habitat | Mountane or subalpine swamp or wet field |
| Chromosomal number | unknown |
| Description | Leaves 1.5-4cm across. Scapes electing 12-40cm tall. Flowers white 15-20mm across, flowering in August to September. Perennial plants. |
| Reference | Parnassia foliosa Hook. f. & Thomson |
| Parnassia foliosa J. D. Hooker & Thomson | |
| Liver function protecting or improving agent (US Patent Application 20020110605) | |
| Preventives or remedies for arthritis (US Patent Application 20040161478) | |
| Plant Germination Inhibitor And Method Of Use Thereof (US Patent Application 20070274956) |
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| September 2009 at a nursery |
