Hieracium aurantiacum
Sp. Pl. 2: 801. 1753.
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.
Phenology: Flowering (May–)Jun–Aug(–Sep).
Habitat: Disturbed sites (fields, lawns, roadsides), bogs, clays, sands
Elevation: 10–300(–1000+) m
Distribution
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.
Discussion
Selected References
None.