| Family | Ruscaceae (also placed in Liliaceae) |
| Scientific name | Maianthemum dilatatum (A. Wood) A. Nelson & J. F. Macbride |
| Synonyms | Maianthemum bifolium (L.) F. W. Schmidt var. dilatatum Alph. Wood; Maianthemum bifolium (L.) F. W. Schmidt var. kamtschaticum (J. F. Gmelin) Jepson; Maianthemum kamtschaticum (J. F. Gmelin) Nakai; Unifolium dilatatum (Alph. Wood) Greene; Unifolium kamtschaticum (J. F. Gmelin) Gorman |
| Common name | (Japanese common name) mai-dzuru-sou (マイヅルソウ, 舞鶴草 [meaning: dancing cranes weed]) |
| (English common name) false lily of the valley | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Russia, Korea, China, Canada, USA | |
| lHabitat | Mountane forest |
| Chromosomal number | 2n=36, 54 |
| Description | Plants 8-25cm tall, non hair. Leaves 3-12cm long, petioles 1.5-5cm long. Flowers pedicels 3-4mm long, 4 white perianths each ca. 2mm long, flowering in May to July. Fruits 3mm. Perennial plants. |
| References | Maianthemum dilatatum (Alph. Wood) A. Nelson & J. F. Macbr. |
| Maianthemum dilatatum (Alph. Wood) A. Nelson & J. F. Macbride | |
| Remedies (US Patent 20060039998) | |
| Safening method (US Patent 20070021303) |
| June 2008 at Senjo-ga-hara Swamp |
June 2008 at Senjo-ga-hara Swamp |
June 2008 at Senjo-ga-hara Swamp |
| April 2007 at Tsukuba Botanical Garden |