Heterotheca subaxillaris (Lamarck) Britton & Rusby. Camphorweed. Phen: Jul-Oct (-Jan). Hab: Coastal dunes and sand-flats, roadsides, disturbed areas. Dist: NJ, PA, IN, IL, SD, UT and CA south to FL, TX, and Mexico.

Origin/Endemic status: Native

Synonymy: = C, F, Fl7, G, Il, K1, K4, Mex, NcTx, NY, Pa, RAB, S, SE1, WH3, Nesom (2019e); > Heterotheca latifolia Buckley var. arkansana Wagenkn. – Tx; > Heterotheca latifolia Buckley var. latifolia – Tx, Semple (1996), Wagenknecht (1960); > Heterotheca latifolia Buckley var. macgregoris Wagenkn. – GrPl; > Heterotheca subaxillaris (Lam.) Britton & Rusby – Va, Semple (1996); > Heterotheca subaxillaris (Lam.) Britton & Rusby ssp. latifolia (Buckley) Semple – Ar, FNA20, K3, Tn, Semple (2004); > Heterotheca subaxillaris (Lam.) Britton & Rusby ssp. subaxillaris – FNA20, K3, Semple (2004); > Heterotheca subaxillaris (Lam.) Britton & Rusby var. latifolia (Buckley) Gandhi & R.D.Thomas – NE, Gandhi & Thomas (1989); > Heterotheca subaxillaris (Lam.) Britton & Rusby var. procumbens Wagenkn. – Tx; > Heterotheca subaxillaris (Lam.) Britton & Rusby var. subaxillaris – Tx, Gandhi & Thomas (1989), Wagenknecht (1960)

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