[Oxalis and Wood Sorrels: The Genus Oxalis West of the Cascade Mountains of Oregon and Washington]

Creeping Yellow Wood Sorrel, Creeping Yellow Wood-sorrel, Creeping Wood-sorrel

Oxalis corniculata

Synonym: Oxalis violacea

Creeping Yellow Wood Sorrel, Creeping Yellow Wood-sorrel, Creeping Wood-sorrel: Oxalis corniculata (Synonym: Oxalis violacea - Creeping Yellow Wood Sorrel, Creeping Yellow Wood-sorrel, Creeping Wood-sorrel: Oxalis corniculata (Synonym: Oxalis violacea

The weedy creeping yellow wood sorrel observed in waste areas along the sidewalks in the neighborhood west of Gresham High School, Gresham, OR.......April 28, 2020.
Paul Slichter