Trichostema setaceum Houttuyn. Section: Trichostema. Narrowleaf Blue Curls. Phen: Aug-Nov. Hab: Thin soils around rock outcrops, especially granite flatrocks, dry sandy soils of the Coastal Plain. Dist: CT west to OH, south to FL and TX, primarily on the Coastal Plain.
Origin/Endemic status: Native
Syn: = C, F, Fl6, Il, K1, K3, K4, NE, NY, Pa, RAB, Tn, Tx, Va, W, WH3, Lewis (1945), McClelland & Weakley (2019) in Weakley et al (2019a); = Trichostema dichotomum L. var. lineare (Walter) Pursh – G; = Trichostema lineare Walter – S
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