Delphinium carolinianum Walter ssp. virescens (Nuttall) R.E. Brooks. Plains Larkspur, Prairie Larkspur. Phen: Apr-Jun (-Jul). Hab: Prairies, glades, ledges. Dist: MB, MN, WI, w. IL, e. MO, sw. AR and e. TX, westwards to ND, SD, NE, CO, and AZ.

Origin/Endemic status: Native

Synonymy: = Ar, FNA3, K3, K4, NcTx; = Delphinium virescens Nutt. – C, GrPl; > Delphinium carolinianum Walter ssp. penardii (Huth) Warnock; > Delphinium virescens Nutt. var. macroceratilis (Rydb.) Cory – Tx; > Delphinium virescens Nutt. var. penardii (Huth) L.M.Perry – F, Tx; > Delphinium virescens Nutt. var. virescens – F, Tx

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