Coreopsis grandiflora Hogg ex Sweet var. harveyana (A. Gray) Sherff. Phen: Late May-late Jun. Hab: Sandy woodlands, disturbed areas. Dist: Var. harveyana is the most abundant variety, probably originally endemic to AR, n. LA, ne. TX, OK, e. KS, and s. and c. MO, but now scattered eastward to IN, NC, and SC.
Origin/Endemic status: Native
Taxonomy Comments: See Crawford & Smith (1984) for additional discussion of the varieties.
Synonymy: = Ar, F, GrPl, Il, K1, K3, Va, Sherff & Alexander (1955), Smith (1976); < Coreopsis grandiflora Hogg ex Sweet – FNA21, G, Mi, Mo2, NE, NY, Ok, RAB, S, Tn, Tx, W, WH3, WV; < Coreopsis grandiflora Hogg ex Sweet var. grandiflora – C, SE1