Croton willdenowii G.L. Webster. Glade Rushfoil, Outcrop Rushfoil, Broadleaf Rushfoil, Willdenow's Croton. Phen: Jun-Oct. Hab: Granitic flatrocks, diabase barrens, calcareous barrens, thin soils around other rock outcrops, open woodlands, disturbed sandy soil. Dist: CT, se. PA (Rhoads & Block 2007), IL, and se. KS, south to ne. FL, Panhandle FL, and TX.

Origin/Endemic status: Native

Taxonomy Comments: Van Ee & Berry (2009) argued that this taxon is only varietally distinct from Croton michauxii (see synonymy).

Synonymy: = Ar, Fl2, K1, K4, Tn, Va, WH3, Webster (1992); = Croton michauxii G.L.Webster var. elliptica (Willd.) B.W.van Ee & P.E.Berry – FNA12, K3, van Ee & Berry (2009); = Crotonopsis elliptica Willd. – C, F, G, GrPl, Il, NE, Pa, RAB, S, Tx, W

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