Stellaria irrigua

Stellaria irrigua is a species of flowering plant in the family Caryophyllaceae known by the common names umbrella starwort^[2] and umbellate starwort. It is native to western North America from Alaska and north-western Canada to the south-western United States, as well as parts of Asia, including Siberia. It grows in subalpine and alpine climates in mountain forests and riverbanks. It is a rhizomatous perennial herb producing a slender prostrate stem up to about 20 centimeters long, sometimes forming clumps or mats. The stem is lined with pairs of oval leaves each up to about 2 centimeters long. The inflorescence is an umbel-shaped array of several flowers each on an arching or erect pedicels. The flower has five pointed green sepals each no more than 3 millimeters long. There are occasionally tiny white petals within the calyx of sepals, but these are generally absent.

Stellaria irrigua
Conservation status
Apparently Secure  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Caryophyllaceae
Genus:	Stellaria
Species:	S. irrigua
Binomial name
Stellaria irrigua Bunge
Synonyms
List Alsine baicalensis Coville Stellaria gonomischa B.Boivin Stellaria leiosperma Pobed. Stellaria subumbellata Edgew. Stellaria subumbellata f. villosa H.Chuang Stellaria umbellata Kar. & Kir. Stellaria weberi B.Boivin Stellaria wutaica Hand.-Mazz.