Coreopsis verticillata Linnaeus. Threadleaf Coreopsis. Phen: May-Jul. Hab: Dry sandy, rocky, or clayey woodlands and woodland borders; also a waif or persistent from horticultural use. Dist: Smith (1976) indicates that the species consists of two chromosome races, a diploid, ranging in the Piedmont and Mountains from c. SC and NC north to ne. WV, and s. MD, and an allotetraploid, limited to the Coastal Plain of ne. NC and se. VA.

Origin/Endemic status: Endemic

Other Comments: The finely-divided leaves are attractive and the plant is cultivated horticulturally; scattered occurrences outside the ranges indicated above are escapes from cultivation.

Synonymy: = C, F, FNA21, G, K1, K3, K4, NE, RAB, S, SE1, Va, W, WV, Sherff & Alexander (1955), Smith (1976)

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