Hieracium longiberbe |
Hieracium caespitosum |
|
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long-bearded hawkweed, longbeard hawkweed |
field hawkweed, King devil, meadow hawkweed, yellow hawkweed, yellow King-devil |
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Habit | Plants 25–50+ cm. | Plants 20–75 cm. |
Stems | proximally piloso-hirsute (hairs 2–8+ mm), sometimes glabrate, distally glabrous or piloso-hirsute (hairs 2–5+ mm). |
proximally piloso-hirsute (hairs 1–3+ mm) and stipitate-glandular, sometimes stellate-pubescent as well, distally piloso-hirsute (hairs 1–4+ mm), stellate-pubescent, and stipitate-glandular. |
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 3–8+, cauline 0–2(–5+); blades oblanceolate to lanceolate, 35–120(–180+) × 12–20+ mm, lengths 2–6(–10+) times widths, bases cuneate, margins entire or denticulate, apices rounded to acute, faces usually piloso-hirsute (hairs 1–3+ mm) and stellate-pubescent, sometimes glabrate. |
Peduncles | usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous. |
piloso-hirsute (hairs 1–2.5 mm), stellate-pubescent, and stipitate-glandular. |
Involucres | campanulate, 7–10 mm. |
campanulate, 7.5–9 mm. |
Florets | 12–24+; corollas yellow, 7–12 mm. |
25–50+; corollas yellow, 8–12+ mm. |
Phyllaries | 12–15+, apices ± rounded, abaxial faces piloso-hirsute and stellate-pubescent. |
12–18+, apices acute to acuminate, abaxial faces piloso-hirsute (hairs 1–2.5+), stellate-pubescent, and stipitate-glandular. |
Calyculi | bractlets 9–13+. |
bractlets 5–8+. |
Heads | (3–)6–12+ in corymbiform arrays. |
5–25+ in ± umbelliform or congested, corymbiform arrays. |
Cypselae | columnar, ca. 3.5 mm; pappi of 32–40+, white or stramineous bristles in ± 2 series, 5–6 mm. |
columnar, 1.5–1.8 mm; pappi of 25–30+, white bristles in 1 series, 4–5(–6) mm. |
Hieracium longiberbe |
Hieracium caespitosum |
|
Phenology | Flowering Jul. | Flowering May–Jul(–Aug). |
Habitat | Cliffs | Disturbed sites, stream sides |
Elevation | 30–100 m (100–300 ft) | 10–300(–1500) m (0–1000(–4900) ft) |
Distribution |
OR; WA
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CT; DC; DE; GA; ID; IL; IN; KY; MA; MD; ME; MI; MN; MT; NC; NH; NJ; NY; OH; PA; RI; SC; TN; VA; VT; WA; WI; WV; WY; BC; MB; NB; NF; NS; ON; PE; QC; Europe [Introduced in North America]
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Discussion | Hieracium longiberbe is known only from along the Columbia River. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The type of Hieracium floribundum Wimmer & Grabowski probably resulted from a cross between plants of H. caespitosum and H. lactucella (P. D. Sell and C. West 1976). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 19, p. 289. | FNA vol. 19, p. 284. |
Parent taxa | Asteraceae > tribe Cichorieae > Hieracium | Asteraceae > tribe Cichorieae > Hieracium |
Sibling taxa | ||
Synonyms | H. pratense, Pilosella caespitosa | |
Name authority | Howell: Fl. N.W. Amer., 395. (1901) | Dumortier: Fl. Belg., 62. (1827) |
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