Plants of South Eastern New South Wales

Polycarpon tetraphyllum

Flowering stems. Australian Plant Image Index, photographer Murray Fagg, Canberra, ACT

Spent flowers with developing seeds. Photographer Don Wood, Canberra

Plants. Photographer Don Wood, Canberra

Common name

Four-leaved allseed, Four-leaf allseed

Family

Caryophyllaceae

Where found

Weed of lawns, pastures, gardens, and disturbed sites. Widespread.

Notes

Introduced annual, biennial, or perennial herb to 0.25 m high or prostrate, hairless. Leaves opposite each other or apparently in whorls of 4, 0.4–1.8 cm long, 2–10 mm wide, either stalked and oval or stalkless and spoon-shaped, tips blunt. Flowers 3–4 mm in diameter, with 5 sepals 2–3 mm long, with a broad, green midrib and membranous margins. Petals 5, minute, white. Flowers in much-branched clusters. Flowering: most of the year.

PlantNET description:  http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Polycarpon~tetraphyllum  (accessed 1 February, 2021)