Hieracium scouleri |
Hieracium alpinum |
|
---|---|---|
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) |
alpine hawkweed |
|
Habit | Plants (15–)35–60+ cm. | Plants 10–15(–25+) 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 piloso-hirsute (hairs 3–5+ mm), stellate-pubescent, and stipitate-glandular, distally piloso-hirsute (hairs 3–5+ mm), stellate-pubescent, and stipitate-glandular. |
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 5–13+, cauline 0(–2+); blades spatulate to elliptic or narrowly lanceolate, 20–80 × 6–20+ mm, lengths 2–8+ times widths, bases cuneate, margins usually entire, rarely dentate, apices rounded to acute, faces piloso-hirsute (hairs 1–3+ mm). |
Peduncles | usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous. |
piloso-hirsute, stellate-pubescent, and stipitate-glandular. |
Involucres | campanulate, 8–10 mm. |
± hemispheric, 13–18 mm. |
Florets | 20–45+; corollas yellow, 10–12 mm. |
80–120+; corollas yellow, 12–15 mm. |
Phyllaries | 12–21+, apices rounded to acute, abaxial faces piloso-hirsute, stellate-pubescent, and stipitate-glandular. |
13–21+, apices acute to acuminate, abaxial faces piloso-hirsute and stipitate-glandular. |
Calyculi | bractlets 5–13+. |
bractlets 5–8+. |
Heads | (3–)9–25+ in corymbiform to thyrsiform arrays. |
borne singly or 2+ in corymbiform 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, 3.5–4 mm; pappi of 40–60+, stramineous bristles in ± 2 series, 6–7 mm. |
Hieracium scouleri |
Hieracium alpinum |
|
Phenology | Flowering Jun–Sep. | Flowering Jul(–Sep). |
Habitat | Disturbed sites, openings in pine forests and sagebrush, borders of meadows | Calcareous stream banks |
Elevation | 400–3000 m (1300–9800 ft) | 0–10+ m (0–0+ ft) |
Distribution |
CA; ID; MT; NV; OR; UT; WA; WY; AB; BC
|
Greenland; Europe |
Discussion | The type of Hieracium trigonophorum Oskarsson is probably conspecific with that of H. alpinum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 19, p. 289. | FNA vol. 19, p. 291. |
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. angmagssalikense |
Name authority | Hooker: Fl. Bor.-Amer. 1: 298. (1833) | Linnaeus: Sp. Pl. 2: 800. (1753) |
Web links |
|