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hound-tongue hawkweed, hounds tongue hawkweed, hounds-tongue hawkweed (var. griseum), Scouler's hawkweed, Scouler's woollyweed, western hawkweed, western hawkweed (var. albertinum), woolly weed, woolly-weed (var. scouleri)

Allegheny hawkweed, panicle hawkweed

Habit Plants (15–)35–60+ cm. Plants 30–90 cm.
Stems

proximally usually piloso-hirsute (hairs 1–8+ mm) and stellate-pubescent, sometimes glabrous, distally usually piloso-hirsute (hairs 1–8+ mm) and stellate-pubescent, rarely stipitate-glandular as well, sometimes glabrous.

proximally usually glabrous, sometimes piloso-hirsute (hairs 3–8+ mm) and/or stellate-pubescent, distally usually glabrous.

Leaves

basal 0(–5+), cauline (3–)5–10+;

blades lanceolate, oblanceolate or narrowly oblong to elliptic, 50–100(–200) × 10–25(–35+) mm, lengths (3–)4–8+ times widths, bases cuneate, margins entire or denticulate, apices obtuse to acute, faces usually piloso-hirsute (hairs 1–5+ mm) and stellate-pubescent, rarely glabrous.

basal 0(–2), cauline 6–12+;

blades elliptic or oblanceolate to lanceolate, 30–80(–150) × 6–25(–35) mm, lengths 3–6+ times widths, bases cuneate, margins usually toothed, sometimes denticulate or entire, apices acute to acuminate, faces glabrous or piloso-hirsute (hairs 1–4+ mm).

Peduncles

usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous.

usually glabrous, sometimes stipitate-glandular.

Involucres

campanulate, 8–10 mm.

campanulate to cylindric, 6–7 mm.

Florets

20–45+;

corollas yellow, 10–12 mm.

8–20(–30);

corollas ochroleucous to yellow, 5–8 mm.

Phyllaries

12–21+, apices rounded to acute, abaxial faces piloso-hirsute, stellate-pubescent, and stipitate-glandular.

8–13+, apices acute to acuminate, abaxial faces usually glabrous, sometimes stipitate-glandular.

Calyculi

bractlets 5–13+.

bractlets 8–13+.

Heads

(3–)9–25+ in corymbiform to thyrsiform arrays.

(6–)12–50+ in corymbiform to paniculiform arrays.

Cypselae

(red-brown or black) columnar, ca. 3 mm;

pappi of 32–40+, white or stramineous bristles in ± 2 series, 6–7 mm.

columnar, 2–2.5 mm;

pappi of 35–40+, stramineous bristles in ± 2 series, 4–5 mm.

Hieracium scouleri

Hieracium paniculatum

Phenology Flowering Jun–Sep. Flowering (Jul–)Aug(–Oct).
Habitat Disturbed sites, openings in pine forests and sagebrush, borders of meadows Openings in forests
Elevation 400–3000 m (1300–9800 ft) (10–)500–800 m ((0–)1600–2600 ft)
Distribution
from FNA
CA; ID; MT; NV; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; CT; DE; GA; IN; KY; MA; MD; ME; MI; NC; NH; NJ; NY; OH; PA; RI; SC; TN; VA; VT; WV; NB; NS; ON; QC
[WildflowerSearch map]
[BONAP county map]
Discussion

The type of Hieracium scribneri Small may have resulted from a cross between plants of H. paniculatum and H. venosum (A. Cronquist 1980).

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

Source FNA vol. 19, p. 289. FNA vol. 19, p. 287.
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. piloselloides, H. pringlei, H. robinsonii, H. sabaudum, H. scabrum, H. schultzii, 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. 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. absonum, H. albertinum, H. chapacanum, H. cynoglossoides, H. scouleri var. albertinum, H. scouleri var. griseum
Name authority Hooker: Fl. Bor.-Amer. 1: 298. (1833) Linnaeus: Sp. Pl. 2: 802. (1753)
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