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Your search found 22 taxa.
Flowers pale blue, 0.3-0.6" wide, per Wildflowers of Tennessee.
Tiny (under 1/8" wide) whitish flowers in one-sided racemes, per Newcomb's Wildflower Guide.
Corolla conspicuously irregular, lobes rounded and spreading, the throat open, per Vascular Flora of the Carolinas.
Flowers solitary in the crowded upper leaf axils, per Wildflowers of the Southern Mountains.
Corolla lobes rounded, spreading, entire; tube 7-14mm long; style included, per Weakley's Flora.
Its pale yellow flowers much smaller and less colorful than L. caroliniense, per Atlantic Coastal Plain Wildflowers.
Stems densely covered with white hairs. Flowers solitary from leaf axils, per www.illinoiswildflowers.info.
Flowers borne in a distinctive, leafy, coiled inflorescence [helicoid cyme], per Atlantic Coastal Plain Wildflowers.
Flowers in a leafy, one-sided coil at branch ends, per Field Guide to the Rare Plants of Georgia.
Corolla larger than the native, with a short tube and 5 spreading lobes, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
Blue flowers with a yellow eye, found in wet places, per Newcomb's Wildflower Guide.
Flower white; calyx irregular with some of its hairs hooked at the end, per Wildflowers of the Southern Mountains.
Flowers only 0.12" wide, in tight helical racemes at branch ends, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
Corolla blue, ~ 1.5mm broad, tube not exceeding the calyx, per Vascular Flora of the Carolinas.
Terminal clusters of pink buds unfold into porcelain-blue long-necked bells, per Gardening with the Native Plants of Tennessee.
Corolla 10–15 mm, pink, turning deep blue or purple, per Jepson eFlora, University of California, Berkeley.
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