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devil's paintbrush, fox-and-cubs, grim-the-collier, King-devil, orange flower hawkweed, orange hawkweed, tawny hawkweed, épervière orangée

flagellate hawkweed, hawkweed, whip hawkweed

Habit Plants 15–35(–60+) cm. Plants 5–12(–20+) cm.
Stems

proximally piloso-hirsute (hairs 2–4+ mm), distally piloso-hirsute (hairs 1–4 mm) and stipitate-glandular.

proximally piloso-hirsute (hairs 2–4+ mm) and stellate-pubescent, distally piloso-hirsute (hairs 1–4 mm), stellate-pubescent, 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.

basal 8–12+, cauline 0(–2+);

blades spatulate to oblanceolate, 20–45(–130+) × 8–20(–25+) mm, lengths 2–3+ times widths, bases cuneate, margins entire, apices rounded to acute, abaxial faces piloso-hirsute (hairs 1–4+ mm) and stellate-pubescent, adaxial piloso-hirsute (hairs 1–4+ mm).

Peduncles

stellate-pubescent and stipitate-glandular.

piloso-hirsute, stellate-pubescent, and stipitate-glandular.

Involucres

campanulate, 6–8 mm.

hemispheric, (9–)12–13 mm.

Florets

25–120+;

corollas orange (drying scarlet to purplish), 10–14+ mm.

90–120+;

corollas yellow (often each with abaxial red stripe), 6–10+ mm.

Phyllaries

13–30+, apices acuminate, abaxial faces piloso-hirsute, stellate-pubescent, and stipitate-glandular.

30–40, apices acuminate, abaxial faces stellate-pubescent, sometimes, piloso-hirsute and stipitate-glandular as well.

Calyculi

bractlets 5–8+.

bractlets 13–15+.

Heads

3–7(–12+) in ± umbelliform arrays.

2–4+ in ± umbelliform to corymbiform arrays.

Cypselae

columnar, 1.2–1.5(–2) mm;

pappi of 25–30+, white bristles in 1 series, 3.5–4 mm.

columnar, 1–2.5 mm;

pappi of 25–40+, white bristles in 1 series, 4–5+ mm.

Hieracium aurantiacum

Hieracium flagellare

Phenology Flowering (May–)Jun–Aug(–Sep). Flowering May.
Habitat Disturbed sites (fields, lawns, roadsides), bogs, clays, sands Disturbed sites, roadsides, forest edges
Elevation 10–300(–1000+) m (0–1000(–3300+) ft) 10–300(–600+) m (0–1000(–2000+) ft)
Distribution
from FNA
AK; AR; CA; CO; CT; FL; GA; IA; ID; IL; IN; KY; MA; MD; ME; MI; MN; MT; NC; NH; NJ; NY; OH; OR; PA; RI; SD; TN; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NL; NS; ON; PE; QC; SK; SPM; Europe [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
from FNA
CT; IN; MA; ME; MI; NH; NY; OH; PA; VA; VT; BC; NB; NS; PE; QC; Europe [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
Discussion

The type of Hieracium flagellare may have resulted from a cross between plants of H. caespitosum and H. pilosella (A. Cronquist 1980).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 19, p. 283. FNA vol. 19, p. 284.
Parent taxa Asteraceae > tribe Cichorieae > Hieracium Asteraceae > tribe Cichorieae > Hieracium
Sibling taxa
H. abscissum, H. albiflorum, H. alpinum, H. argutum, H. bolanderi, H. brevipilum, H. caespitosum, H. carneum, H. crepidispermum, H. fendleri, H. flagellare, H. greenei, H. gronovii, H. horridum, H. lactucella, H. longiberbe, H. longipilum, H. megacephalon, H. murorum, H. nudicaule, H. paniculatum, H. parryi, H. pilosella, H. piloselloides, H. pringlei, H. robinsonii, H. sabaudum, H. scabrum, H. schultzii, H. scouleri, H. traillii, H. triste, H. umbellatum, H. venosum, H. vulgatum
H. abscissum, H. albiflorum, H. alpinum, H. argutum, H. aurantiacum, H. bolanderi, H. brevipilum, H. caespitosum, H. carneum, H. crepidispermum, H. fendleri, H. greenei, H. gronovii, H. horridum, H. lactucella, H. longiberbe, H. longipilum, H. megacephalon, H. murorum, H. nudicaule, H. paniculatum, H. parryi, H. pilosella, H. piloselloides, H. pringlei, H. robinsonii, H. sabaudum, H. scabrum, H. schultzii, H. scouleri, H. traillii, H. triste, H. umbellatum, H. venosum, H. vulgatum
Synonyms Pilosella aurantiaca H. flagellare var. amauracron, H. flagellare var. cernuiforme, H. flagellare var. pilosius, Pilosella flagellaris
Name authority Linnaeus: Sp. Pl. 2: 801. (1753) Willdenow: Enum. Pl., suppl.: 54. (1814)
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