[The Genus Alyssum East of the Cascade Mountains of Oregon and Washington]

Desert alyssum as seen along the Gray Butte Trail #852 in the Crooked River Grasslands..........May 20, 2017. Note the glabrous fruits which helps separate this from pale alyssum (Alyssum alyssoides)

Desert alyssum as seen along the Fremont National Recreation Trail on the east side of Crook Peak, Fremont-Winema National Forest.......June 28, 2019. Note the lack of sepals at the base of the fruits.