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Rudbeckia triloba var. triloba
Family:
Asteraceae
Brown-Eyed-Susan
Richard Hull
FNA
Indiana Flora
Resources
Lowell E. Urbatsch, Patricia B. Cox in Flora of North America (vol. 21)
Cauline leaves
(at least some) 3-lobed.
Discs
10-15 mm diam.
Ray laminae
8-17 mm.
2
n
= 38, ca. 57, 57.
Flowering Jul-Oct. Mesic to wet woodlands, thickets, pastures, roadsides, meadows; 20-300 m; Ont., Que.; Ala., Ark., Colo., Conn., Del., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., Pa., Tenn., Tex., Utah, Vt., Va., W.Va., Wis.
Variety
triloba
is introduced in Canada.
From Flora of Indiana (1940) by Charles C. Deam
Infrequent, but usually in large colonies in the open or wooded, moist banks of streams and in moist wooded ravines. Throughout the state although there are no reports or specimens from the northern counties.
……
Indiana Coefficient of Conservatism: C = 3
Wetland Indicator Status: FACU
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