Sour grass Vanessa Lee Thomas 12 years ago Sour grass (Oxalis pes-caprae), indigenous to South Africa but wide-spread in California aka goat’s-foot, Cape sorrel, or Bermuda buttercup. Photo 1: Sour Grass Photo 2: Bermuda Buttercup Photo 3: Cape sorrel Photo 4: Goat’s foot Share this: Share on X (Opens in new window) X Share on Tumblr (Opens in new window) Tumblr Share on Facebook (Opens in new window) Facebook Share on WhatsApp (Opens in new window) WhatsApp Share on Pinterest (Opens in new window) Pinterest Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email