| Family | Caryophyllaceae |
| Subfamily | Alsinoideae |
| Tribe | Alsineae |
| Scientific name | Arenaria serpyllifolia L. |
| Synonyms | Alsine serpyllifolia (L.) Crantz; Alsinella serpyllifolia (L.) Gray; Arenaria leptoclados (Reichenbach) Gussone; Arenaria lloydii Jordan; Arenaria serpyllifolia L. subsp. euserpyllifolia Briquet; Arenaria serpyllifolia L. subsp. lloydii (Jordan) H. E. Weber; Arenaria serpyllifolia L. subsp. macrocarpa Perring & Sell; Arenaria serpyllifolia L. var. lloydii (Jordan) Gutermann & Mennema; Arenaria serpyllifolia L. var. macrocarpa Lloyd; Arenaria viscida Loiseleur-Deslongchamps; Euthalia serpyllifolia (L.) Ruprecht; Stellaria serpyllifolia (L.) Scopoli |
| Common name | (Japanese common name) nomi-no-tudzuri (ノミノツヅリ or ノミノツズリ, 蚤ノ綴 [meaning: flea dress]) |
| (English common name) thyme-leaf sandwort | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China, Taiwan, Asia, Europa | |
| Habitat | Roadside, farm yard |
| Chromosomal number | 2n=20, 40 |
| Description | Plants 10-25cm tall. Leaves 3-7mm long, hairy. Flowers white, calyxs 3mm long, 10 stamens, flowering in March to July. Fruits ca. 3mm long. Annual or winter annual plants. |
| Reference | Arenaria serpyllifolia L. |
| Arenaria serpyllifolia L. | |
| Arenaria serpyllifolia L. | |
| Herbicidal method using diflufenican (US Patent 5013353/1991) | |
| Triazole derivative, herbicidal compositions containing the derivatives and methods of their use (US Patent 5759958/1998) | |
| Herbicidal compositions comprising picolinafen (US Patent 6660692/2003) |
| May 2008 at roadside |
May 2008 at roadside |
May 2008 at roadside |