Arnica acaulis (Walter) Britton, Sterns, & Poggenburg. Leopard’s-bane, Southeastern Arnica. Phen: Late Mar-Jun. Hab: Longleaf pine savannas, longleaf pine sandhills, clayey or sandy oak and oak-pine woodlands, powerline rights-of-way, roadbanks. Dist: DE (historical) and se. PA and MD (where on serpentine) south to Panhandle FL, on the Coastal Plain and lower Piedmont (rarely upper Piedmont, as in w. SC in the Blue Ridge Escarpment region).

Origin/Endemic status: Endemic

Synonymy: = C, F, Fl7, FNA21, G, GW2, K1, K3, K4, Pa, RAB, S, SE1, Tat, Va, WH3; = Doronicum acaule Walter

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: UPL
• Eastern Mountains and Piedmont: FACU

Heliophily: 8