[The Oxalis Family West of the Cascade Mountains]
Western Wood Sorrel,
Oregon Wood Sorrel, Redwood Sorrel, Redwood-sorrel, Sour Grass
Oxalis oregana
Synonyms: Oxalis oregana var. oregana, Oxalis oregana var. smallii
Redwood sorrel (the former Oxalis oregana var. smallii) as seen at the author's garden in Gresham, OR..............May 3, 2005. This variety of wood sorrel makes an attractive ground cover for the woodland garden to the west of the Cascade Mts.
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Close-ups of the flowers of Oregon wood sorrel as seen in forest at the base of Saddle Mountain in the Coast Range of northwestern Oregon...............May 21, 2009.
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Close-ups of the flower and "shamrock" leaf and flower of western wood sorrel as seen in the author's garden in Gresham, OR..............May 5, 2009.
Paul Slichter