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| March 2006 at Mt. Tsukuba |
March 2007 at Mt. Tsukuba |
March 2007 at Mt. Tsukuba |
| Family | Melanthiaceae (also placed in Liliaceae) |
| Scientific name | Trillium smallii Maximovicz |
| Synonyms | Trillium apetalon Makino; Trillium smallii Maximovicz var. apetalon (Makino) Takeda |
| Common name | (Japanese common name) enrei-sou (エンレイソウ, 延齢草 [meaning: longevity weed]) |
| (English common name) Japanese trillium | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Russia (Sakhalin) | |
| Habitat | Mountane forest |
| Chromosomal number | 2n=20 |
| Description | Leaves 6-16cm long. Plants 20-40cm tall. Flowers 2-3cm across, calyx lobes 12-25mm, flowering in April to May. Fruits 1-2cm across, seeds 2.5mm long. Perennial plants. |
| References | Trillium smallii Maxim. |
| Remedies (US Patent 20060039998) |
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| March 2006 at Mt. Tsukuba |
March 2007 at Mt. Tsukuba |
March 2007 at Mt. Tsukuba |
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| March 2007 at mountane forest in Niigata Prefecture |
March 2007 at mountane forest in Niigata Prefecture |
March 2007 at mountane forest in Niigata Prefecture |
