| Family | Plantaginaceae (also placed in Scrophulariaceae) |
| Tribe | Veroniceae |
| Scientific name | Veronicastrum villosulum (Miquel) T. Yamazaki |
| Synonyms | Botryopleuron macrophyllum H. L. Li.; Botryopleuron villosulum (Miquel) Makino; Calorhabdos villosula (Miquel) Bentham & Hooker f. ex Makino; Paederota villosula Miquel |
| Common name | (Japanese common name) suzukake-sou (スズカケソウ, 鈴掛草 [meaning: hanging bells weed]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Gifu Prefecture), Shikoku (Tokushima Prefecture) |
| (Other nations) China | |
| Habitat | Mountain |
| Chromosomal number | unknown |
| Description | Plants 1-1.5m long. Leaves 5-13cm long. Flowers blue corollas 6-7mm long, flowering in July to August. Perennial plants. |
| Reference | Veronicastrum villosulum (Miquel) T. Yamazaki |
| Note | Rare species. |
| July 2008 at Kochi Prefecture Makino Botanical Garden |
July 2008 at Kochi Prefecture Makino Botanical Garden |
July 2008 at Kochi Prefecture Makino Botanical Garden |
| July 2008 at Kochi Prefecture Makino Botanical Garden |