| Family | Poaceae (alt. Gramineae) |
| Scientific name | Poa trivialis L. subsp. sylvicola (Gussoni) H. Lindberg |
| Synonyms | Poa attica auct., non Boissier & Heldreich; Poa sylvicola Gussoni; Poa trivialis L. var. sylvicola (Gussoni) Hackel |
| Common name | (Japanese common name) tama-oh-suzume-no-katabira [rosary large suzume-no-katabira (suzume-no-katabira = Poa annua L.)] |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) [native] Russia, Ukraine, Caucasus, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Iran, Iraq, Turkey, Serbia and Montenegro, Greece, Italy | |
| Chromosomal number | 2n=14 |
| Description | Culms 20-40cm. Leaves 1.5-4mm width. Flowers inflorescences 3-20cm length, spikelets 3-4mm length, flowering in May to August. Perennial plants. |
| Reference | Poa trivialis subsp. sylvicola (Gussoni) H. Lindberg |
| Poa trivialis L. subsp. sylvicola (Guss.) H. Lindb. | |
| Note | Naturalized plants (recently wide spreaded). |
| May 2007 at lowland forest edge |
May 2007 at lowland forest edge |
| May 2007 at lowland forest edge |
May 2007 at lowland forest edge |