Hieracium piloselloides |
Hieracium longipilum |
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glaucous hawkweed, glaucous King-devil, King devil, tall hawkweed, épervière des florentins |
hairy hawkweed, longbeard hawkweed |
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Habit | Plants 15–40(–70+) cm. | Plants 30–75(–200) cm. |
Stems | proximally usually piloso-hirsute (hairs 2–4+ mm), rarely glabrous, distally usually glabrous, sometimes piloso-hirsute (hairs 1–3+ mm), stellate-pubescent, and/or stipitate-glandular. |
proximally piloso-hirsute (hairs 6–15+ mm), distally piloso-hirsute (hairs 3–10+ mm), sometimes stellate-pubescent as well. |
Leaves | basal 3–8(–20+), cauline 0–2(–4+); blades oblanceolate to lanceolate, 30–100(–150+) × 8–20+ mm, lengths 2.5–8+ times widths, bases cuneate, margins entire or denticulate, apices rounded to acute, faces glabrous or piloso-hirsute (on midribs and at margins, hairs 1–4+ mm). |
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). |
Peduncles | piloso-hirsute (hairs 1–2+ mm), stellate-pubescent, and stipitate-glandular. |
stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well. |
Involucres | campanulate, 5–7 mm. |
campanulate, 6–8(–10) mm. |
Florets | (40–)60–80+; corollas yellow, 6–9 mm. |
30–40(–60); corollas yellow, ca. 7 mm. |
Phyllaries | 12–18+, apices acute to acuminate, abaxial faces piloso-hirsute (hairs 0.5–1.5+), stellate-pubescent, and stipitate-glandular. |
12–21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular. |
Calyculi | bractlets 3–12+. |
bractlets 9–13+. |
Heads | (3–)10–30+ in subumbelliform or corymbiform arrays. |
10–20+ in paniculiform to nearly racemiform arrays. |
Cypselae | columnar, 1.5–2 mm; pappi of 25–40+,white bristles in 1 series, 3–4 mm. |
urceolate, 3–4+ mm; pappi of 35–40+, stramineous to sordid bristles in 2+ series, 5.5–6.5 mm. |
Hieracium piloselloides |
Hieracium longipilum |
|
Phenology | Flowering (May–)Jun–Aug(–Sep). | Flowering Jul–Sep. |
Habitat | Disturbed sites | Fields, prairies, roadsides |
Elevation | 10–300(–1500) m (0–1000(–4900) ft) | 100–400 m (300–1300 ft) |
Distribution |
CT; DE; GA; IA; IL; IN; MA; MD; ME; MI; MN; MT; NC; NH; NJ; NY; OH; PA; RI; SC; VA; VT; WA; WI; WV; BC; NB; NF; NS; ON; PE; QC; Europe [Introduced in North America]
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AR; IA; IL; IN; KS; KY; LA; MI; MN; MO; NE; OH; OK; TN; TX; WI; ON
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Discussion | Plants called Hieracium praealtum Villars ex Gochnat (at least those called H. praealtum var. decipiens W. D. J. Koch) reputedly differ from members of H. piloselloides in having blades of their proximal leaves stellate-pubescent abaxially (M. L. Fernald 1950); such plants may be found in the flora and may merit taxonomic recognition. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. 285. |
Parent taxa | Asteraceae > tribe Cichorieae > Hieracium | Asteraceae > tribe Cichorieae > Hieracium |
Sibling taxa | ||
Synonyms | H. florentinum, Pilosella piloselloides | |
Name authority | Villars: Prosp. Hist. Pl. Dauphiné, 34. (1779) | Torrey ex Hooker: Fl. Bor.-Amer. 1: 298. (1833) |
Web links |
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