Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Arabidopsis thaliana (L.) Heynh. image
Photographer: Gary Fewless           

Botanical Illustration
Family Brassicaceae
Arabidopsis thaliana (L.) Heynh.
mouse-ear-cress, thale-cress
Arabidopsis: like Arabis a Greek word used for"mustard" or "cress," and the Greek word for Arabia
thaliana: after Johannes Thal (1542-1583), who discovered this species in the Harz Mountains and originally called it Pilosella siliquosa. Its current name was finally settled on in his honor in 1842
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - adventive
Plant: annual, 4"-16" tall forb; stems branched
Flower: white; inflorescence a very open, small cluster (raceme) of stalked flowers; blooms April-June
Fruit:long, thin pod pointing upward
Leaf:mostly basal rosette, stem leaves small
Habitat: disturbed areas; in sandy soil

More Information Natural Communities Herbarium Specimens
All Arabidopsis list Google- Images or Text

Flora of North America (off site)
Arabis thaliana L.
Sisymbrium thalianum (L.) J.Gay & Monnard

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