Cerastium semidecandrum L.

Little Mouse-ear Chickweed

Sp. Pl. 438 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Annual (?or biennial) with slender taproot; hairs glandular and eglandular. Stems erect or ascending from leafy rosette, 1–20 cm long. Leaves 5–18 mm long, 3–5(–7) mm wide; lower leaves oblanceolate, petioles to 5 mm long; upper leaves sessile, broadly ovate-elliptic. Inflorescence lax, few-flowered; bract margins broadly scarious. Flowers 5-merous; fruiting pedicels longer than capsule, at first deflexed, later erect; calyx glandular-pilose, sepals ovate, 2.5–5 mm long, acute, margins narrowly to broadly scarious; petals slightly to one-third shorter than sepals, emarginate, rarely bifid; styles 5. Capsule slightly curved, 4.5–7 mm long; seeds pale yellowish-brown, finely but bluntly tuberculate, 0.4–0.5 mm diam. Flowers Oct.

*GipP, *Glep, *HNF, *NIS. Also naturalised SA, Tas. Native to Europe and western Asia. An apparently rare weed of disturbed soils.

The majority of literature records of 'Cerastium semidecandrum' for Victoria probably refer to the closely related C. balearicum.

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.
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 semidecandrum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Cerastium semidecandrum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Glenelg Plain present introduced
Gippsland Plain present naturalised
Northern Inland Slopes present naturalised
Highlands-Northern Fall present naturalised

State distribution

Distribution map
South Australia
New South Wales