Hieracium aurantiacum

Linnaeus

Sp. Pl. 2: 801. 1753

Common names: Orange hawkweed épervière orangée
Introduced
Synonyms: Pilosella aurantiaca (Linnaeus) F. W. Schultz & Schultz-Bipontinus
Treatment appears in FNA Volume 19. Treatment on page 283. Mentioned on page 279.

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

V19-389-distribution-map.gif

Introduced; 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.

Lower Taxa

None.

... more about "Hieracium aurantiacum"
John L. Strother +
Linnaeus +
Orange hawkweed +  and épervière orangée +
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. +  and Europe. +
10–300(–1000+) m +
Disturbed sites (fields, lawns, roadsides), bogs, clays, sands +
Flowering (May–)Jun–Aug(–Sep). +
Introduced +
Pilosella aurantiaca +
Hieracium aurantiacum +
Hieracium +
species +