| Family | Fabaceae (alt. Leguminosae) |
| Subfamily | Caesalpinioideae |
| Tribe | Cassieae |
| Subtribe | Cassiinae |
| Scientific name | Chamaecrista dimidiata (Buchanan-Hamilton ex Roxburgh) Lock |
| Synonyms | Cassia dimidiata Gagnepain; Cassia hochstetteri Ghesq.; Cassia mimosoides L. subsp. nomame (Siebold) Honda; Cassia mimosoides L. var. dimidiata (Buchanan-Hamilton ex Roxburgh) Baker; Cassia mimosoides L. var. nomame Makino; Cassia nomame (Makino) Honda; Chamaecrista nomame (Makino) H. Ohashi; Senna dimidiata Buchanan-Hamilton ex Roxburgh; Soja nomame Siebold |
| Common name | (Japanese common name) kawara-ketsumei (カワラケツメイ, 河原決明 [meaning: riverbed ketsumei (ketsumei = a traditional Chinese medicine = Senna tora (L.) Roxburgh)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu, Shikoku, Kyushu |
| (Other nations) Korea, China | |
| Habitat | Field |
| Chromosomal number | 2n=16 |
| Description | Plants 30-60cm tall. Leaves 4-7mm long, 1.5mm wide. Flowers yellow corollas 7mm across, calyx lobes 5-6mm long, flowering in August to October. Fruits 3-4cm long. Annual plants. |
| Reference | Chamaecrista dimidiata (Buch.-Ham. ex Roxb.) Lock |
| N-substituted chloroacetanilides processes for production thereof, and herbicidal composition comprising the same (US Patent 4802907/1989) | |
| Haloacetamide compounds, process for production thereof, and use thereof as herbicide (US Patent 4895587/1990) | |
| Blood-lipid depressant and victuals containing the same (US Patent 5674498/1997) | |
| Tannins and lipase inhibitors containing the same as active ingredients (US Patent 5629338/1997) | |
| Flavor-improved extract from Cassia mimosoides L. var. nomame Makino and method of preparing the same (US Patent 6054129/2000) | |
| Pharmaceutical composition containing psyllium fiber and a lipase inhibitor (US Patent 6251421/2001) |
| September 2007 at Tsukuba Botanical Garden |
September 2007 at Tsukuba Botanical Garden |
September 2007 at Tsukuba Botanical Garden |
| September 2007 at Tsukuba Botanical Garden |
September 2007 at Tsukuba Botanical Garden |
| October 2006 at open field |
October 2006 at open field |
October 2006 at open field |