Rootstock perennial, slender, scaly and little branched. Leaves basal, three to eight together, each 2 to 6 inches high, pubescent; petioles broadened at the base and jointed. Leaflets three, obcordate, wider than long, one-half to 1 inch wide. Flowers one-half to three-fourths of an inch broad, solitary on stalks as long or longer than the leaves; petals white or pink with deep pink veins, three or four times longer than the calyx; stamens ten. Fruit a subglobose, cylindric capsule about one-sixth of an inch long. At the base of the leaves are also found short-stalked flowers.
Memoir 15 N. Y. State Museum
B. White Or True Wood Sorrel; Alleluia - Oxalis acetosella