Hieracium longipilum |
Hieracium triste |
|
---|---|---|
hairy hawkweed, longbeard hawkweed |
alpine hawkweed, slender hawkweed, woolly hawkweed |
|
Habit | Plants 30–75(–200) cm. | Plants (3–)10–20(–40+) cm. |
Stems | proximally piloso-hirsute (hairs 6–15+ mm), distally piloso-hirsute (hairs 3–10+ mm), sometimes stellate-pubescent as well. |
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 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). |
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 | stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well. |
stellate-pubescent and stipitate-glandular. |
Involucres | campanulate, 6–8(–10) mm. |
± campanulate, (6–)7–10 mm. |
Florets | 30–40(–60); corollas yellow, ca. 7 mm. |
20–60+; corollas yellow, 5–6 mm. |
Phyllaries | 12–21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular. |
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 | 10–20+ in paniculiform to nearly racemiform arrays. |
usually 2–8+ in corymbiform arrays, sometimes borne singly. |
Cypselae | urceolate, 3–4+ mm; pappi of 35–40+, stramineous to sordid bristles in 2+ series, 5.5–6.5 mm. |
columnar, 1.5–3.5 mm; pappi of 30–40+ white or sordid bristles in ± 2 series, 4–5 mm. |
Hieracium longipilum |
Hieracium triste |
|
Phenology | Flowering Jul–Sep. | Flowering (Jun–)Jul–Aug(–Sep). |
Habitat | Fields, prairies, roadsides | Rocky slopes, stream sides, conifer forests, drying meadows, subalpine meadows |
Elevation | 100–400 m (300–1300 ft) | 100–3500 m (300–11500 ft) |
Distribution |
AR; IA; IL; IN; KS; KY; LA; MI; MN; MO; NE; OH; OK; TN; TX; WI; ON
|
AK; CA; CO; ID; MT; NM; OR; UT; WA; WY; AB; BC; NT; YT
|
Discussion | 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. 291. |
Parent taxa | Asteraceae > tribe Cichorieae > Hieracium | Asteraceae > tribe Cichorieae > Hieracium |
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 | Torrey ex Hooker: Fl. Bor.-Amer. 1: 298. (1833) | Willdenow ex Sprengel: Syst. Veg. 3: 640. (1826) |
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