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| (male flower) | (male flower) | (male flower) |
| June 2009 at Mt. Tsukuba |
June 2009 at Mt. Tsukuba |
June 2009 at Mt. Tsukuba |
| Family | Rubiaceae |
| Scientific name | Mitchella undulata Siebold & Zuccarini |
| Synonyms | Mitchella repens L. subsp. undulata (Siebold & Zuccarini) H. Hara; Mitchella repens L. var. undulata (Siebold & Zuccarini) Makino; Mitchella undulata Siebold & Zuccarini forma minor (Masamune) Sugimmoto ex J. Yokoyama, T. Fukuda & Tsukaya; Mitchella undulata Siebold & Zuccarini var. minor Masamune |
| Common name | (Japanese common name) tsuru-ari-dohshi (ツルアリドオシ, 蔓蟻通 [meaning: creeping ant picking needle]), hime-tsuru-ari-dohshi (ヒメツルアリドオシ, 姫蔓蟻通 [meaning: dwarf creeping ant picking needle]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Korea, Taiwan | |
| Habitat | Mountaine wet forest |
| Chromosomal number | 2n=22 |
| Description | Plants creeping 10-40cm long. Leaves evergreen, 0.8-1.5cm long, 0.4-1.2cm wide, petioles 2-5mm long. Flowers pedicels ca. 5mm long, white (or merely pink) corollas 1.5cm long, 4 stamens, flowering in June to July. Fruits red ca. 8mm across. Perennial plants. |
| Reference | Mitchella undulata Siebold & Zucc. |
| Mitchella undulata Siebold & Zucc. | |
| Morphological and molecular variation in Mitchella undulata, with special reference to the systematic treatment of the dwarf form from Yakushima |
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| (male flower) | (male flower) | (male flower) |
| June 2009 at Mt. Tsukuba |
June 2009 at Mt. Tsukuba |
June 2009 at Mt. Tsukuba |
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| (female flower) | (female flower) |
| June 2009 at Mt. Tsukuba |
June 2009 at Mt. Tsukuba |
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| June 2009 at Mt. Tsukuba |
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| June 2009 at Mt. Tsukuba |
June 2009 at Mt. Tsukuba |
