Houstonia longifolia Gaertner var. compacta Terrell. Eastern Longleaf Bluet. Phen: Early Jun-Aug; Sep-Oct. Hab: Dry rock outcrops and adjacent open woodlands, longleaf pine sandhills, dry sandy woodlands, dry roadbanks, glades and barrens. Dist: Var. compacta is centered in the central Appalachians of VA, WV, e. KY, and se. OH, with extensions north to VT, west into n. IL, and south in the Piedmont and adjacent Coastal Plain to SC, GA, and Panhandle FL.

Origin/Endemic status: Native

Synonymy: = WV, Terrell (1959); = Houstonia longifolia Gaertn. – Terrell (1996); < Hedyotis longifolia (Gaertn.) Hook. – C, Rogers (1987); < Houstonia longifolia Gaertn. – F, Fl5, G, Il, K1, K3, K4, NE, NY, Pa, RAB, S, Tn, Va, W, WH3; < Houstonia longifolia Gaertn. var. longifolia – Terrell (1991)

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