Cerastium diffusum Pers.

Sea Mouse-ear Chick-weed

Syn. Pl. 1: 520 (1805) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Annual with slender taproot; hairs dense, glandular and few eglandular. Stems decumbent, diffusely-branched, 7–30 cm long. Leaves sessile, oblanceolate to ovate, 5–20 mm long, 2–7(–10) mm wide, acute. Inflorescence lax, few-flowered; bracts entirely herbaceous. Flowers usually 4-merous; pedicels longer than sepals, much longer than capsule; calyx glandular-pilose, sepals ovate to lanceolate, 4–9 mm long, acute to acuminate, herbaceous or margins narrowly scarious; petals three-quarters the length of sepals, c. one-fifth bifid; styles 4(–5). Capsule usually straight, 5–10 mm long; seeds chestnut-brown, colliculate to bluntly tuberculate, 0.4–0.7 mm diam. Flowers Sep.–Nov.

*CVU, *GipP, *Gold, *GGr, *HNF, *HSF, *LoM, *MuF, *MuM, *OtP, *WPro, *Wim. Also naturalised SA, ACT. Native to western Europe, from Scandinavia to the Mediterranean. A rather sparsely-occurring weed of disturbed places.

Source: Adams, L.G. (1996). Caryophyllaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-02-09
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Caryophyllanae
genus Cerastium
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Cerastium diffusum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Cerastium diffusum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present naturalised
Murray Mallee present naturalised
Wimmera present naturalised
Murray Fans present naturalised
Gippsland Plain present naturalised
Otway Plain present naturalised
Goldfields present naturalised
Central Victorian Uplands present naturalised
Greater Grampians present introduced
Wilsons Promontory present naturalised
Highlands-Southern Fall present naturalised
Highlands-Northern Fall present naturalised

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory