Dig deeper at SERNEC, a consortium of southeastern herbaria.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Oxalidales
Oxalidaceae in the southeastern United States (Robertson, 1975)
Oxalis acetosella ssp. montana
Manual of the Southeastern Flora (Small, 1933)
Mountain Wood-sorrel, American Wood-sorrel, Wood Shamrock, White Wood-sorrel
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Dan Whitten sdw_mountainwoodsorrel
April Sevier County TN
Great Smoky Mountains National Park
Petals heavily veined with pink, a yellow spot at the base, notched at tip, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
Patrick D. McMillan pdmomontana_brp9
Month Unknown NC
Blue Ridge Parkway
Leaves all basal and long-stalked, each blade with heart-shaped leaflets, per Wildflowers of Tennessee.