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FNA | Family List | FNA Vol. 21 | Asteraceae | Rudbeckia

19a. Rudbeckia hirta Linnaeus var. angustifolia (T. V. Moore) Perdue, Rhodora. 59: 296. 1958.

Rudbeckia floridana T. V. Moore var. angustifolia T. V. Moore, Pittonia 4: 176. 1900; R. divergens T. V. Moore

Annuals, biennials, or perennials. Stems branched mostly at or near mid heights, leafy toward bases. Leaves: basal blades oblanceolate, 0.5–2.5 cm wide; cauline narrowly elliptic (smaller distally); margins entire or serrate; faces hispid to ± sericeous. Peduncles at least 1/2 plant heights. 2n = 38.

Flowering spring–summer. Meadows, pastures, old fields, roadsides; 20–80 m; Ala., Fla., Ga., La., Miss., S.C., Tex.

Variety angustifolia grows along the Gulf coastal plain.


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