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| May 2008 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
| Family | Myrsinaceae (also placed in Primulaceae) |
| Scientific name | Lysimachia thyrsiflora L. |
| Synonyms | Naumburgia guttata Moench; Naumburgia thyrsiflora (L.) Duby; Nummularia thyrsiflora (L.) Kuntze; Naumburgia thyrsiflora (L.) Reichenbach |
| Common name | (Japanese common name) yanagi tora-no-o (ヤナギトラノオ, 柳虎尾 [meaning: willow leaved tiger tail]) |
| (English common name) tufted loosestrife, water loosestrife | |
| Distribution | (Japan) Hokkaido, Honshu (north of Central region) |
| (Other nations) Russia, Korea, China, Europe, Canada, USA | |
| Habitat | Swamp |
| Chromosomal number | 2n=20, 40, 42 |
| Description | Plants 30-80cm tall. Leaves 4-10cm long, 0.8-4.5cm wide. Flowers yellow corollas 0.8-1cm across, 6 stamens, flowering in May to August. Fruits ca. 2.5mm across. Perennial plants. |
| Reference | Lysimachia thyrsiflora Linnaeus |
| Lysimachia thyrsiflora L. | |
| Lysimachia thyrsiflora L. | |
| Lysimachia L. |
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| May 2008 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
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| May 2008 at Tsukuba Botanical Garden |
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| March 2009 at Tsukuba Botanical Garden |
