''Oxalis stricta'', called the common yellow woodsorrel, common yellow oxalis, upright yellow-sorrel, lemon clover, or more ambiguously and informally "sourgrass" is an herbaceous plant native to North America, parts of Eurasia, and has a rare introduction in Britain.
Similar species: Oxalidales
Uploaded Aug 3, 2020. Captured Apr 6, 2019 11:46 in 216 W Magnolia Ave, San Antonio, TX 78212, USA.