Flora of the Southeastern United States
2022 Edition


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Trichostema brachiatum Linnaeus. Glade Blue Curls, False Pennyroyal. Phen: (Jul-) Aug-Sep (-Oct). Hab: Shale barrens, outcrops of calcareous or mafic rock, diabase barrens, calcareous dry prairies, disturbed rocky areas. Dist: VT and s. ON west to MN and NE, south to c. and w. NC, nc. SC, nw. GA, AL, TX, and AZ.

Origin/Endemic status: Native

Syn: = Ar, GrPl, K3, K4, Mi, Mo3, NcTx, NE, NY, Pa, Tx, Va, W, Lewis (1945); = Isanthus brachiatus – C, F, Il, K1, S, Tn, WV; = n/a – RAB; > Isanthus brachiatus var. brachiatus – G; > Isanthus brachiatus var. linearis – G

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image of plant© Gary P. Fleming
image of plant© Alan M. Cressler
image of plant© Richard & Teresa Ware