[The Mustard Family in Denali National Park and Preserve]

Hoary Yellowcress

Rorippa barbareifolia

Synonyms: Camelina barbareifolia, Radicula barbareifolia, Rorippa hispida var. barbareifolia, Rorippa islandica, Rorippa islandica var. barbareifolia, Tetrapoma barbareifolium, Tetrapoma pyriforme

Fernald's Yellowcress, Marsh Yellowcress, Northern Marsh Yellowcress, Smooth Marsh Yellowcress, Yellow Bogcress: Rorippa palustris var. glabra (Synonyms: Rorippa hispida, Rorippa islandica ssp. fernaldiana, Rorippa islandica var. fernaldiana, Rorippa islandica var. glabra, Rorippa islandica var. glabrata,Rorippa islandica var. cernua, Rorippa islandica var. dictyota, Rorippa islandica var. glabra, Rorippa islandica var. glabrata, Rorippa palustris ssp. fernaldiana, Rorippa palustris ssp. glabra, Rorippa palustris ssp. occidentalis, Rorippa palustris var. occidentalis, Rorippa palustris ssp. palustris)

A close reltative of hoary cress, marsh yellowcress (Rorippa palustre) as found in the Pacific Northwest.
Paul Slichter