| Family |
Lamiaceae (alt. Labiatae) |
| Subfamily |
Teucrioideae |
| Scientific name |
Teucrium japonicum Houttuyn |
| Synonyms |
Teucrium brevispicum Nakai; Teucrium japonicum Houttuyn var. continentale
Kitagawa; Teucrium japonicum Willdenow; Teucrium nepetoides H. Léveillé;
Teucrium ussuriense V. Komarov; Teucrium viscidum Blume var. nepetoides
(H. Léveillé) C. Y. Wu & S. Chow |
| Common name |
(Japanese common name) niga-kusa (ニガクサ, 苦草 [meaning: bitter weed]) |
| (English common name) none |
| Distribution |
(Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) Russia, Korea, China |
| Habitat |
Wet field |
| Chromosomal number |
unknown |
| Description |
Plants electing 30-70cm tall. Leaves 5-10cm long, 2-3.5cm wide. Flowers
calyxs ca. 4mm long, purple corollas 10-12mm long, flowering in July to
September. Perennial plants. |
| Reference |
Teucrium japonicum Willdenow |
| Teucrium ussuriense V. Komarov |
| Oral compositions (European Patent EP0321180/1992) |
