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Your search found 12 taxa.
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.
Petals pink or white, 1-1.5cm long, per Vascular Flora of the Carolinas.
Flowers about 1/2" across, on leafless stems in umbelliform clusters, per Wildflowers of the Southern Mountains.
Leaflets about 1cm long and often considerably less. Petals 5-7mm long, per Vascular Flora of the Carolinas.
Flower petals yellow, without red lines, 5-11mm, per Further Observations on the Oxalis dillenii Group (Oxalidaceae) (Nesom et al., 2014).
Petals 9-15mm, yellow with prominent red stripes at base (corolla throat), per Further Observations on the Oxalis dillenii Group (Oxalidaceae) (Nesom et al., 2014).
Petals (6-)8-11mm, yellow, per Again: Taxonomy of Yellow-flowered Caulescent Oxalis in eastern North America (Nesom, 2009).
Scapes 15-28cm; petals violet to lavender or rose purple, per Flora of North America.
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