Hieracium longiberbe |
Hieracium triste |
|
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long-bearded hawkweed, longbeard hawkweed |
alpine hawkweed, slender hawkweed, woolly hawkweed |
|
Habit | Plants 25–50+ cm. | Plants (3–)10–20(–40+) cm. |
Stems | proximally piloso-hirsute (hairs 2–8+ mm), sometimes glabrate, distally glabrous or piloso-hirsute (hairs 2–5+ mm). |
proximally glabrous or stellate-pubescent, distally usually piloso-hirsute (hairs 1–8+ mm) and/or stellate-pubescent and/or stipitate-glandular, sometimes glabrous. |
Leaves | basal 0(–3+), cauline 6–12+; blades spatulate to oblanceolate, 25–80(–100+) × 8–15(–25+) mm, lengths 3–5 times widths, bases ± cuneate, margins usually entire, rarely denticulate, apices obtuse to acute, abaxial faces piloso-hirsute (hairs 2–5+ mm), adaxial usually piloso-hirsute at margins (hairs 2–5+ mm), rarely glabrous. |
basal (3–)5–12+, cauline 0–2(–3+); blades obovate to spatulate or oblanceolate, (15–)25–40(–60+) × 5–10(–25+) mm, lengths 2–3+ times widths, bases cuneate, margins usually entire, rarely denticulate, apices rounded to obtuse (often apiculate), faces usually glabrous, sometimes stipitate-glandular and/or scabrellous. |
Peduncles | usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous. |
stellate-pubescent and stipitate-glandular. |
Involucres | campanulate, 7–10 mm. |
± campanulate, (6–)7–10 mm. |
Florets | 12–24+; corollas yellow, 7–12 mm. |
20–60+; corollas yellow, 5–6 mm. |
Phyllaries | 12–15+, apices ± rounded, abaxial faces piloso-hirsute and stellate-pubescent. |
13–21+, apices acuminate, abaxial faces piloso-hirsute (hairs 1–3+ mm), stellate-pubescent, and stipitate-glandular. |
Calyculi | bractlets 9–13+. |
bractlets 5–8+. |
Heads | (3–)6–12+ in corymbiform arrays. |
usually 2–8+ in corymbiform arrays, sometimes borne singly. |
Cypselae | columnar, ca. 3.5 mm; pappi of 32–40+, white or stramineous bristles in ± 2 series, 5–6 mm. |
columnar, 1.5–3.5 mm; pappi of 30–40+ white or sordid bristles in ± 2 series, 4–5 mm. |
Hieracium longiberbe |
Hieracium triste |
|
Phenology | Flowering Jul. | Flowering (Jun–)Jul–Aug(–Sep). |
Habitat | Cliffs | Rocky slopes, stream sides, conifer forests, drying meadows, subalpine meadows |
Elevation | 30–100 m [100–300 ft] | 100–3500 m [300–11500 ft] |
Distribution |
OR; WA
|
AK; CA; CO; ID; MT; NM; OR; UT; WA; WY; AB; BC; NT; YT
|
Discussion | Hieracium longiberbe is known only from along the Columbia River. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 19, p. 289. | FNA vol. 19, p. 291. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Chlorocrepis tristis, H. gracile, H. gracile var. alaskanum, H. gracile var. densifloccosum, H. gracile var. detonsum, H. gracile var. yukonense, H. triste var. fulvum, H. triste subsp. gracile, H. triste var. gracile, H. triste var. tristiforme | |
Name authority | Howell: Fl. N.W. Amer., 395. (1901) | Willdenow ex Sprengel: Syst. Veg. 3: 640. (1826) |
Web links |
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