Coreopsis delphiniifolia Lamarck. Larkspur Coreopsis. Phen: May-Jul. Hab: Dry woodlands. Dist: The species ranges from e. VA and s. NC south to c. GA, and se. TN (Polk County) (Chester, Wofford, & Kral 1997), and reputedly AL.

Origin/Endemic status: Endemic

Taxonomy Comments: Smith (1976) indicated that the species is an allopolyploid derivative (at 4×, 6×, and 8×) of C. major, C. tripteris, and C. verticillata. Its range extends south well beyond the range of C. verticillata.

Synonymy: = FNA21, K1, K3, K4, Tn, Va; = Coreopsis ×delphiniifolia – Smith (1976); = Coreopsis delphinifolia – C, F, G, S, SE1, orthographic variant; > Coreopsis delphinifolia var. chlooidea Sherff – Sherff & Alexander (1955); > Coreopsis delphinifolia var. delphinifolia – Sherff & Alexander (1955); > Coreopsis major Walter var. linearis Small – Sherff & Alexander (1955); < Coreopsis major Walter var. stellata (Nutt.) B.L.Rob. – RAB

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