Finger leaf Sorrel (Oxalis glabra) by Margaret at 3:53 pm 15/05/13

Confidence: It's likely to be this, but I can't be certain.

Notes: The leaves are very like those of O. glabra being 3-foliate, very narrow and wedge shaped with a distinctive notch at the tip. The flower stalk is at least twice as long ast the leaf stalk and the petal colouration is the most commonly seen for O. glabra. Not having ever dug up O. glabra, I can't be sure about the bulb. Therefore I'm not putting my head on a block!!