Stellaria holostea

Greater Stitchwort
Stellaria holostea with its distinctive notched petals
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Core eudicots
Order:	Caryophyllales
Family:	Caryophyllaceae
Genus:	Stellaria
Species:	S. holostea
Binomial name
Stellaria holostea L.

Stellaria holostea, the addersmeat or greater stitchwort, is a perennial herbaceous flowering plant in the carnation family Caryophyllaceae.

It can grow up to 60 centimetres (24 in) in height, with roughly 4-angled stems. The long, narrow (lanceolate) leaves are greyish green, hairless, sessile, opposite and decussate (the successive pairs borne at right angles to each other). The flowers are white, 20-30mm across with five petals split to about halfway down and much shorter sepals.

Stellaria, the genus name, means 'star-like'. The specific epithet holostea comes from the Greek holosteon, literally meaning 'entire bone'; a reference to the brittleness of the weak stems of this plant. The common name Stitchwort is a reference to a herbal remedy in which this plant is used allegedly to cure side stitch, which afflicts many people when they try to run without stretching first.

Stellaria holostea is native to Western and Central Europe, including the British Isles.

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Wikipedia