Common Wall Cress, Mouse-ear, Mouseear Cress, Mouse-ear Cress, Thalecress
Arabidopsis thaliana
Synonyms: Arabis thaliana, Sisymbrium thalianum
Common wall cress beginning to bloom as a weed at the Beekman Botanical Garden in Jacksonville, OR..........April 6, 2009.
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Common wall cress as seen from Nob Hill Park in Saint Helens, OR..........April 3, 2016.
Paul Slichter