Arabidopsis thaliana (L.) Heynh.

Common Wallcress

Fl. Sachsen 2: 538 (1842) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Sparingly established

Annual herbs to 50 cm high, often several-stemmed. Basal leaves spathulate, obovate, ovate, or elliptic, 8–35(–45) mm long, (1–)2–12(–15) mm wide, margin entire or lobed; stem leaves subsessile, lanceolate, linear, oblong, or elliptic, smaller than basal leaves, usually entire. Sepals 1–2(–2.5) mm long, equal; petals white, 2–3.5 mm long. Fruit linear, 10–25 mm long, glabrous; valves with distinct midvein; style c. 0.5 mm long; pedicles spreading, to 10 mm long; seeds ellipsoid, c. 0.5 mm long.  

*GipP. Also naturalised WA, Qld, NSW, ACT, Tas. Native to Europe and Asia, naturalised throughout much of the world. Currently the only record of this species in Victoria is from the grounds of the Parkville campus of the University of Melbourne, where it is thought to have escaped from research trials.

Arabidopsis thaliana is widely used as a model organism for studies in plant biology.

Created by: Andre Messina, 2015-08-18
Updated by: Val Stajsic, 2018-10-01
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Brassicales
family Brassicaceae
genus Arabidopsis
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Arabidopsis thaliana in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Arabidopsis thaliana in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Gippsland Plain present introduced

State distribution

Distribution map
Western Australia
New South Wales
Australian Capital Territory