Common name: Thale Cress, Common Wallcress
Arabidopsis thaliana (L.) Heynh. APNI*
Description: Slender annual, mostly 10–40 cm high, simple or branched, with scattered simple hairs.
Basal leaves in a rosette, elliptic to spathulate, 2–4 cm long, toothed to entire; upper leaves sparse, reducing.
Sepals to 2 mm long. Petals to 4.5 mm long, white. Siliqua linear, 10–30 mm long, c. 1 mm wide, somewhat curved; valves glabrous, convex with a prominent branched central vein; pedicel slender, spreading, to 10 mm long.
Distribution and occurrence: Native of Asia & Eur.
NSW subdivisions: *NT, *ST, *NWS, *CWS
Other Australian states: *Tas.
Text by L. Retter & G. J. Harden
Taxon concept: Flora of NSW 1 (1990)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.