| Family | Lamiaceae (alt. Labiatae) |
| Subfamily | Scutellarioideae |
| Scientific name | Scutellaria brachyspica Nakai & Hara |
| Synonyms | Scutellaria brachyspica Nakai & H. Hara forma albiflora Hayashi & Y. Kobayashi |
| Common name | (Japanese common name) oka-tatsunami (オカタツナミソウ, 岡立浪草 [meaning: hillock sea spray weed]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (south of Miyagi Prefecture), Shikoku |
| (Other nations) none | |
| Habitat | Mountane forest edge |
| Chromosomal number | 2n=26 |
| Description | Plants 10-50cm tall. Leaves 1.5-5cm long, 1-4cm wide. Flowers purple or white (forma albiflora) corollas ca. 2cm long, flowering in May to June. Perennial plants. |
| Reference | Chromosome numbers of Japanese Scutellaria (Lamiaceae) |
| Agent containing an ellagic acid series compound for external application and use thereof (US Patent 5073545/1991) | |
| Note | Native to Japan |
| May 2007 at mountane forest edge |
May 2007 at mountane forest edge |
May 2007 at mountane forest edge |
| May 2007 at mountane forest edge |