Thale Cress - Arabidopsis thaliana


Short to medium erect plant with basal leaves forming a rosette. Flowers white 3 mm. Fruits linear 5 to 20 mm hairless, not flattened.

Identification difficulty
ID guidance

Small plant.  Seed-pods long.  Basal leaves entire to toothed.


Waste places banks and walls, preferring dry conditions.

When to see it

March to October.

Life History

Annual or biennial.

UK Status

Fairly common throughout Britain, particularly in the east.

VC55 Status

Fairly common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 183 of the 617 tetrads.

In the current Checklist (Jeeves, 2011) it is listed as Alien (neophyte); occasional

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map