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Coreopsis latifolia Michaux. Broadleaf Coreopsis. Phen: (Jul-) Aug-Sep. Hab: In rich, moist, cove forests and slopes at medium elevations, primarily from 500 m in the Blue Ridge Escarpment to nearly 1500 m, often locally abundant. Dist: A Southern Appalachian endemic: sw. NC and se. TN (Polk County) (Chester, Wofford, & Kral 1997) south into nw. SC and ne. GA.

Origin/Endemic status: Endemic

Other Comments: This species is treated by Smith (1976) in a monotypic section (section Silphidium) of Coreopsis, and, indeed, it does not closely resemble our other species. Smith (1976) considered it a primitive species, with its closest relatives in Mexico, and all of his attempts to hybridize it with other Southeastern Coreopsis failed. Flowering appears to be triggered by canopy tree-fall light gaps. It often occurs with Helianthus glaucophyllus.

Synonymy: = FNA21, K1, K3, K4, RAB, S, SE1, Tn, W, Sherff & Alexander (1955), Smith (1976); = Leiodon latifolius (Michx.) Shuttlew.

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