Biorepository Data Portal

Plants 15-35(-60+) cm. Stems proximally piloso-hirsute (hairs 2-4+ mm), distally piloso-hirsute (hairs 1-4 mm) and stipitate-glandular. Leaves: basal 3-8+, cauline 0(-1+); blades spatulate to oblanceolate, 45-70(-160+) × 10-35 mm, lengths 3-5+ times widths, bases cuneate, margins entire, apices acute, faces piloso-hirsute (hairs 1-2+ mm) and stellate-pubescent. Heads 3-7(-12+) in ± umbelliform arrays. Peduncles stellate-pubescent and stipitate-glandular. Calyculi: bractlets 5-8+. Involucres campanulate, 6-8 mm. Phyllaries 13-30+, apices acuminate, abaxial faces piloso-hirsute, stellate-pubescent, and stipitate-glandular. Florets 25-120+; corollas orange (drying scarlet to purplish), 10-14+ mm. Cypselae columnar, 1.2-1.5(-2) mm; pappi of 25-30+, white bristles in 1 series, 3.5-4 mm. Flowering (May-)Jun-Aug(-Sep). Disturbed sites (fields, lawns, roadsides), bogs, clays, sands; introduced; 10-300(-1000+) m; St. Pierre and Miquelon; Alta., B.C., Man., N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Sask.; Alaska, Ark., Calif., Colo., Conn., Fla., Ga., Idaho, Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mich., Minn., Mont., N.H., N.J., N.Y., N.C., Ohio, Oreg., Pa., R.I., S.Dak., Tenn., Vt., Va., Wash., W.Va., Wis., Wyo.; Europe.

Much like no. 4 [Hieracium caespitosum Dumort.], but the fls red-orange (unique among our spp.), becoming deeper red in drying; plants 1-6 dm, with slender stolons and ordinarily with a slender, elongate rhizome; lvs sometimes a little wider, up to 3.5 cm; invol long-setose, hispid with blackish, gland-tipped hairs, and slightly tomentose; 2n=18, 27, 36, 45, 54, 63, 72. A weed of fields, roadsides, and meadows; native of Europe, now widespread in se. Can. and ne. U.S., s. to N.C. and W.Va., and w. to Minn. and Io. June-Sept.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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