| Family | Commelinaceae |
| Subfamily | Commelinoideae |
| Tribe | Tradescantieae |
| Subtribe | Tradescantiinae |
| Scientific name | Tradescantia fluminensis Vellozo |
| Synonyms | Tradescantia albiflora Kunth; Tradescantia mundula Kunth; Tradescantia myrtifolia hort. |
| Common name | (Japanese common name) tokiwa-tuyukusa (トキワツユクサ, 常磐露草 [meaning: evergreen tuyukusa (tuyukusa = Commelina communis)]) |
| (English common name) small-leaf spiderwort | |
| Distribution | (Japan) Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) [native] Brazil, Argentina, Uruguay | |
| Habitat | Forest edge, forest |
| Chromosomal number | 2n=60, 72, 108 |
| Description | Leaves 3-5cm long, ca. 2cm wide. Flowers white, flowering in May to September. Perennial plants. |
| Reference | Tradescantia fluminensis Vell. |
| Tradescantia fluminensis Vellozo | |
| Tradescantia fluminensis | |
| A method for the high expression of immunoglobulin in plants (WIPO Patent WO/2006/066340) | |
| Note | Naturalized plants. |
| May 2008 at rodaside |
May 2008 at rodaside |
May 2008 at rodaside |
| May 2008 at rodaside |