| Family | Lamiaceae (alt. Labiatae) |
| Subfamily | Lamioideae |
| Scientific name | Loxocalyx ambiguus (Makino) Makino |
| Synonyms | Lamium ambiguum (Makino) Ohwi |
| Common name | (Japanese common name) maneki-gusa (マネキグサ, 招草 [meaning: inviting weed]), yama-kisewata (ヤマキセワタ, 山着せ綿 [meaning: mountain kisewata (kisewata = Leonurus macranthus)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Kanagawa Prefecture), Shikoku, Kyushu |
| (Other nations) none | |
| Habitat | Mountane wet forest |
| Chromosomal number | unknown |
| Description | Plants 40-90cm tall. Leaves 3-7cm long, 2-6.5cm wide, petioles 1-3cm long. Flowers calyxs 10-11mm long, purple corollas 18-20mm long, flowering in August to September. Fruits ca. 2.8mm long. Perennial plants. |
| Reference | Loxocalyx ambiguus |
| September 2008 at Tokyo Medical Herb Botanical Garden |
September 2008 at Tokyo Medical Herb Botanical Garden |
September 2008 at Tokyo Medical Herb Botanical Garden |
| September 2008 at Tokyo Medical Herb Botanical Garden |