Hieracium scouleri |
Hieracium abscissum |
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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) |
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Habit | Plants (15–)35–60+ cm. | Plants 40–75+ 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 3–6+ mm), distally glabrous or stellate-pubescent, sometimes piloso-hirsute (hairs 1–3+ mm) and stipitate-glandular as well. |
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 3–12+, cauline (1–)3–6; blades oblanceolate to lanceolate, 35–120(–200) × 10–25(–30+) mm, lengths 3–6+ times widths, bases cuneate to truncate (distal leaves), margins usually entire, sometimes denticulate or toothed, apices obtuse to acute, faces piloso-hirsute (hairs 2–3+ mm). |
Peduncles | usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous. |
piloso-hirsute (hairs 0.5–1+ mm), stellate-pubescent, and stipitate-glandular. |
Involucres | campanulate, 8–10 mm. |
± campanulate, 6–8+ (× 4–5) mm. |
Florets | 20–45+; corollas yellow, 10–12 mm. |
20–24+; corollas yellow, 6–9 mm. |
Phyllaries | 12–21+, apices rounded to acute, abaxial faces piloso-hirsute, stellate-pubescent, and stipitate-glandular. |
13–18+, apices ± rounded, abaxial faces piloso-hirsute (hairs 0.5–1+ mm), stellate-pubescent, and stipitate-glandular. |
Calyculi | bractlets 5–13+. |
bractlets 3–8+. |
Heads | (3–)9–25+ in corymbiform to thyrsiform arrays. |
(5–)12–30(–60+) in 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. |
(usually black, sometimes red-brown) columnar, 2–3 mm; pappi of 36–40+, white or stramineous bristles in ± 2 series, 3.5–5 mm. |
Hieracium scouleri |
Hieracium abscissum |
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Phenology | Flowering Jun–Sep. | Flowering Apr, Jul–Aug. |
Habitat | Disturbed sites, openings in pine forests and sagebrush, borders of meadows | Disturbed sites, openings in pine, oak, and pine-oak forests |
Elevation | 400–3000 m (1300–9800 ft) | 2000–2600 m (6600–8500 ft) |
Distribution |
CA; ID; MT; NV; OR; UT; WA; WY; AB; BC
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AZ; NM; Mexico; Central America |
Source | FNA vol. 19, p. 289. | FNA vol. 19, p. 293. |
Parent taxa | Asteraceae > tribe Cichorieae > Hieracium | Asteraceae > tribe Cichorieae > Hieracium |
Sibling taxa | ||
Synonyms | H. absonum, H. albertinum, H. chapacanum, H. cynoglossoides, H. scouleri var. albertinum, H. scouleri var. griseum | H. rusbyi |
Name authority | Hooker: Fl. Bor.-Amer. 1: 298. (1833) | Lessing: Linnaea 5: 132. (1830) |
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