Rudbeckia hirta var. floridana
Rhodora 59: 296. 1958.
Annuals, biennials, or perennials. Stems branched at or near bases, leafy toward bases (plants often scapiform). Leaves: basal blades obovate to nearly orbiculate, 1–4 cm wide; cauline blades ovate, elliptic, or oblanceolate (smaller distally); margins entire or serrate; faces scabrous to hirsute. Peduncles at least 1/2 plant heights.
Phenology: Flowering spring–fall.
Habitat: Pastures, old fields, roadsides
Elevation: 0–20 m
Variety floridana grows in central to southern Florida.