| Family | Caryophyllaceae |
| Subfamily | Alsinoideae |
| Tribe | Alsineae |
| Scientific name | Minuartia arctica (Steven ex Seringe) Ascherson & Graebner |
| Synonyms | Alsine arctica (Steven ex Seringe) Fenzl; Arenaria arctica Steven ex Seringe; Arenaria capillaris Poiret var. glandulosa Fenzl; Lidia arctica (Steven ex Seringe) Á. Löve & D. Löve; Minuartia barkalovii N. S. Pavlova |
| Common name | (Japanese common name) ezo-takane-tsumekusa (エゾタカネツメクサ, 蝦夷高嶺爪草 [meaning: Ezo high mountain nail weed (Ezo = an old name of Hokkaido)]), nuburi-bo tsumekusa (ヌプリポツメクサ, 登帆爪草 [meaning: Mt. Nuburi-bo nail weed]) |
| (English common name) arctic sandwort | |
| Distribution | (Japan) Hokkaido |
| (Other nations) Russia, China, Mongolia, Kazakhstan, Canada, USA | |
| Habitat | Alpine or subalpine rocks |
| Chromosomal number | 2n=20, 22, 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 | Minuartia arctica (Steven ex Ser.) Asch. & Graebn. |
| Minuartia arctica (Steven ex Seringe) Graebner | |
| Minuartia arctica (Steven ex Seringe) Graebner |
| Photo by Mr. Ponpoko | Photo by Mr. Ponpoko | Photo by Mr. Ponpoko |
| July 2007 at Rebun Island |
July 2007 at Rebun Island |
July 2007 at Rebun Island |