Thursday, April 17, 2008
First described for science by English botanist Thomas Nuttall in the early 19th century, Oxalis oregana is native to the deep shade of mature coast redwood forests. If hit by direct sunlight, the leaves will fold downward to reduce their exposed surface, then rise again as shadow is regained. While edible, they are loaded with oxalic acid, so are very tart and should be avoided by people vulnerable to kidney stones.
I'm fortunate to have these in my front yard, sheltered by the north-facing porch. It looks like somebody has already had a nibble on them.
Oxalis Jigsaw Puzzle