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

19c. Rudbeckia hirta Linnaeus var. hirta

Rudbeckia amplectens T. V. Moore; R. brittonii Small; R. hirta var. brittonii (Small) Fernald; R. hirta var. monticola (Small) Fernald; R. monticola Small

Biennials or perennials. Stems branched mostly beyond mid heights, leafy ± throughout. Leaves: basal blades broadly ovate to broadly elliptic, 2.5–7 cm wide (lengths mostly 2 times widths); cauline blades lanceolate, ovate, or pandurate; margins coarsely toothed; faces hirsute to hispid. Peduncles less than 1/3 plant heights. 2n = 38.

Flowering spring–fall. Open woodlands, fields, roadsides; 30–300 m; Ala., Ark., Conn., Del., Ga., Ill., Ind., Ky., Maine, Md., Mass., Mich., Miss., N.H., N.J., N.Y., N.C., Ohio, Pa., S.C., Tenn., Vt., Va., W.Va.

Variety hirta grows mostly from the Appalachian highlands to Illinois. A report of var. hirta from Ontario has not been confirmed.


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