Publication: Proc. Amer. Acad. Arts. 17: 362. 1882.
selected vouchers: WTU
Notes: Although accepted by Rollins (1993b), A. furcata var. olympica, a Washington endemic, is known only from the type collection, which apparently was from a single depauperate and anomalous plant and may be synonymous with A. hirsuta var. glabrata (VPPN2; Buckingham et al. 1995).
FNA7: "Arabis furcata is known in Washington from Chelan, Kittitas, Klickitat, Okanogan, Skamania, and Yakima counties, and in Oregon from Clackamas, Hood River, Multnomah, and Wasco counties."