Monday, March 2, 2009
A native of South Africa that has gained a permanent toehold in coastal California, the Bermuda Buttercup is most widely known as sourgrass. Sourgrass has established itself across the United States, Europe and Australia, and regardless of whether you call it African wood sorrel, Cape sorrel, or Goat's Foot, by any name, this invasive plant is still a weed.
It thrives in sun or shade, tolerates drought and comes back more abundantly year after year. Insects and snails avoid it because of its high oxalic acid content, which is what gives it a sour taste.