Rorippa palustris (L.) Besser
Family: Brassicaceae
bog yellow-cress, common yellow-cress
Rorippa palustris image
Corey Raimond  
Etymology: Rorippa: an Anglo-Saxon word rorippen whose meaning has been lost
Plants: erect, annual/biennial, 18"-40" tall forb, larger plants with many branches; taprooted
Leaves: lower leaves pinnately-divided; middle leaves with distinct wings and lobes toward the base, appearing stalkless
Flowers: yellow, 4-parted, 1/8"-3/8" long, petals about the same length as the sepals; inflorescence a loose cluster (raceme) of stalked flowers; blooms May-Oct.
Fruits: longish, plump pods about 2 times as long as its stalk
Habitat: generally in wetlands
Conservation Status: Native
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