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

Robinson's hawkweed

Habit Plants 15–35(–60+) cm. Plants 10–35+ cm.
Stems

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

proximally piloso-hirsute (hairs 1–3+ mm) and stellate-pubescent, distally piloso-hirsute (hairs 0.5–1+ mm) and stellate-pubescent.

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 2–4, cauline (2–)4–10;

blades (often purple-mottled) oblong to lanceolate, 20–80 × 7–20+ mm, lengths 3–4 times widths, bases cuneate, margins usually dentate, sometimes entire, apices acute to acuminate, abaxial faces glabrous or piloso-hirsute (especially midribs), adaxial glabrous or stellate-pubescent.

Peduncles

stellate-pubescent and stipitate-glandular.

piloso-hirsute and stellate-pubescent (not, or rarely, stipitate-glandular).

Involucres

campanulate, 6–8 mm.

campanulate to obconic, 10–15 mm.

Florets

25–120+;

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

30–50+;

corollas yellow (lengths unknown).

Phyllaries

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

25–35, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular.

Calyculi

bractlets 5–8+.

bractlets 10–16.

Heads

3–7(–12+) in ± umbelliform arrays.

1–5(–10) in ± corymbiform arrays.

Cypselae

columnar, 1.2–1.5(–2) mm;

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

columnar, 3–5 mm;

pappi of ca. 30, stramineous bristles in ± 2 series, ca. 6 mm.

Hieracium aurantiacum

Hieracium robinsonii

Phenology Flowering (May–)Jun–Aug(–Sep). Flowering Jul–Aug.
Habitat Disturbed sites (fields, lawns, roadsides), bogs, clays, sands Stream banks and lake shores, sands and clays, rock crevices
Elevation 10–300(–1000+) m (0–1000(–3300+) ft) 10–300+ m (0–1000+ 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
ME; NH; NB; NF; NS; QC
[BONAP county map]
Source FNA vol. 19, p. 283. FNA vol. 19, p. 291.
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. 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. sabaudum, H. scabrum, H. schultzii, H. scouleri, H. traillii, H. triste, H. umbellatum, H. venosum, H. vulgatum
Synonyms Pilosella aurantiaca H. smolandicum subsp. robinsonii
Name authority Linnaeus: Sp. Pl. 2: 801. (1753) (Zahn) Fernald: Rhodora 45: 317. (1943)
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