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glaucous hawkweed, glaucous King-devil, King devil, tall hawkweed, épervière des florentins

hairy hawkweed, longbeard hawkweed

Habit Plants 15–40(–70+) cm. Plants 30–75(–200) cm.
Stems

proximally usually piloso-hirsute (hairs 2–4+ mm), rarely glabrous, distally usually glabrous, sometimes piloso-hirsute (hairs 1–3+ mm), stellate-pubescent, and/or stipitate-glandular.

proximally piloso-hirsute (hairs 6–15+ mm), distally piloso-hirsute (hairs 3–10+ mm), sometimes stellate-pubescent as well.

Leaves

basal 3–8(–20+), cauline 0–2(–4+);

blades oblanceolate to lanceolate, 30–100(–150+) × 8–20+ mm, lengths 2.5–8+ times widths, bases cuneate, margins entire or denticulate, apices rounded to acute, faces glabrous or piloso-hirsute (on midribs and at margins, hairs 1–4+ mm).

basal 3–8+, cauline (3–)6–12+;

blades oblanceolate, 45–80(–250+) × 12–30(–40+) mm, lengths 4–7+ times widths, bases cuneate, margins entire, apices rounded to acute, faces piloso-hirsute (hairs 3–8+ mm).

Peduncles

piloso-hirsute (hairs 1–2+ mm), stellate-pubescent, and stipitate-glandular.

stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well.

Involucres

campanulate, 5–7 mm.

campanulate, 6–8(–10) mm.

Florets

(40–)60–80+;

corollas yellow, 6–9 mm.

30–40(–60);

corollas yellow, ca. 7 mm.

Phyllaries

12–18+, apices acute to acuminate, abaxial faces piloso-hirsute (hairs 0.5–1.5+), stellate-pubescent, and stipitate-glandular.

12–21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular.

Calyculi

bractlets 3–12+.

bractlets 9–13+.

Heads

(3–)10–30+ in subumbelliform or corymbiform arrays.

10–20+ in paniculiform to nearly racemiform arrays.

Cypselae

columnar, 1.5–2 mm;

pappi of 25–40+,white bristles in 1 series, 3–4 mm.

urceolate, 3–4+ mm;

pappi of 35–40+, stramineous to sordid bristles in 2+ series, 5.5–6.5 mm.

Hieracium piloselloides

Hieracium longipilum

Phenology Flowering (May–)Jun–Aug(–Sep). Flowering Jul–Sep.
Habitat Disturbed sites Fields, prairies, roadsides
Elevation 10–300(–1500) m (0–1000(–4900) ft) 100–400 m (300–1300 ft)
Distribution
from FNA
CT; DE; GA; IA; IL; IN; MA; MD; ME; MI; MN; MT; NC; NH; NJ; NY; OH; PA; RI; SC; VA; VT; WA; WI; WV; BC; NB; NF; NS; ON; PE; QC; Europe [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
from FNA
AR; IA; IL; IN; KS; KY; LA; MI; MN; MO; NE; OH; OK; TN; TX; WI; ON
[WildflowerSearch map]
[BONAP county map]
Discussion

Plants called Hieracium praealtum Villars ex Gochnat (at least those called H. praealtum var. decipiens W. D. J. Koch) reputedly differ from members of H. piloselloides in having blades of their proximal leaves stellate-pubescent abaxially (M. L. Fernald 1950); such plants may be found in the flora and may merit taxonomic recognition.

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

Hieracium longipilum may be no longer present in Quebec.

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

Source FNA vol. 19, p. 285. FNA vol. 19, p. 285.
Parent taxa Asteraceae > tribe Cichorieae > Hieracium Asteraceae > tribe Cichorieae > Hieracium
Sibling taxa
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. 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. 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 H. florentinum, Pilosella piloselloides
Name authority Villars: Prosp. Hist. Pl. Dauphiné, 34. (1779) Torrey ex Hooker: Fl. Bor.-Amer. 1: 298. (1833)
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