| Family | Verbenaceae (also placed in Lamiaceae (alt. Labiatae)) |
| Scientific name | Caryopteris divaricata (Siebold et Zuccarini) Maximovicz |
| Synonyms | Clerodendrum divaricatum Siebold & Zuccarini; Tripora divaricata (Maximovicz) P. D. Cantino |
| Common name | (Japanese common name) karigane sou (カリガネソウ, 雁草 [meaning: wild geese weed]), hotate sou (ホタテソウ, 帆立草 [meaning: raising sail weed]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Korea, China | |
| Habitat | Forest edge |
| Chromosomal number | unknown |
| Description | Plants electing 100cm tall. Leaves 5-13cm long, 3-8mm wide. Flowers calyxs 2-3mm long (after flowering 5-6mm long), blue corollas tube 8-10mm long, 4 stamens, flowering in August to September. Seeds ca. 4mm long. Perennial plants. |
| Reference | Caryopteris divaricata Maxim. |
| Caryopteris divaricata Maximowicz |
| September 2006 at my home |
September 2006 at my home |
September 2006 at my home |
| January 2008 at my home |
January 2008 at my home |