Coreopsis grandiflora Hogg ex Sweet var. saxicola (Alexander) E.B. Smith. Hab: Granitic and sandstone outcrops. Dist: C. GA, ec. AL, MS, and nc. AR.
Origin/Endemic status: Endemic
Taxonomy Comments: As interpreted by Smith (1976) and Cronquist (1980), this variety is endemic to granite outcrops in c. GA and ec. AL and to sandstone outcrops in nc. AR; the AR plants, differing in morphology, phenology, karyotype, and distribution, may well warrant separate status.
Synonymy: = Ar, K1, K3, K4, SE1, Smith (1976); = Coreopsis saxicola Alexander – S; < Coreopsis grandiflora Hogg ex Sweet – FNA21; > Coreopsis saxicola Alexander var. duncanii Sherff – Sherff & Alexander (1955); > Coreopsis saxicola Alexander var. saxicola – Sherff & Alexander (1955)