| Family | Myrsinaceae (also placed in Primulaceae) |
| Scientific name | Lysimachia x pilophora (Honda) Honda |
| Synonyms | Lysimachia fortunei var. pilophora Honda |
| Common name | (Japanese common name) inu-numa-tora-no-o (イヌヌマトラノオ, 犬沼虎尾 [meaning: false swamp tiger tail]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (northern Kanto region) |
| (Other nations) none | |
| Habitat | Wet field |
| Chromosomal number | unknown |
| Description | Plants ca. 30-50cm tall. Flowers white, flowering in July to August. Perennial plants. |
| Note | Lysimachia x pilophora (Honda) Honda has been thought to be a natural hybrid of Lysimachia clethroides Duby and Lysimachia fortunei Maximowicz. |
| August 2008 at Nikko Botanical Garden |
August 2008 at Nikko Botanical Garden |
August 2008 at Nikko Botanical Garden |