Hieracium longipilum |
Hieracium piloselloides |
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hairy hawkweed, longbeard hawkweed |
glaucous hawkweed, glaucous King-devil, King devil, tall hawkweed, épervière des florentins |
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Habit | Plants 30–75(–200) cm. | Plants 15–40(–70+) cm. |
Stems | proximally piloso-hirsute (hairs 6–15+ mm), distally piloso-hirsute (hairs 3–10+ mm), sometimes stellate-pubescent as well. |
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. |
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 3–8(–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). |
Peduncles | stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well. |
piloso-hirsute (hairs 1–2+ mm), stellate-pubescent, and stipitate-glandular. |
Involucres | campanulate, 6–8(–10) mm. |
campanulate, 5–7 mm. |
Florets | 30–40(–60); corollas yellow, ca. 7 mm. |
(40–)60–80+; corollas yellow, 6–9 mm. |
Phyllaries | 12–21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular. |
12–18+, apices acute to acuminate, abaxial faces piloso-hirsute (hairs 0.5–1.5+), stellate-pubescent, and stipitate-glandular. |
Calyculi | bractlets 9–13+. |
bractlets 3–12+. |
Heads | 10–20+ in paniculiform to nearly racemiform arrays. |
(3–)10–30+ in subumbelliform or corymbiform arrays. |
Cypselae | urceolate, 3–4+ mm; pappi of 35–40+, stramineous to sordid bristles in 2+ series, 5.5–6.5 mm. |
columnar, 1.5–2 mm; pappi of 25–40+,white bristles in 1 series, 3–4 mm. |
Hieracium longipilum |
Hieracium piloselloides |
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Phenology | Flowering Jul–Sep. | Flowering (May–)Jun–Aug(–Sep). |
Habitat | Fields, prairies, roadsides | Disturbed sites |
Elevation | 100–400 m (300–1300 ft) | 10–300(–1500) m (0–1000(–4900) ft) |
Distribution |
AR; IA; IL; IN; KS; KY; LA; MI; MN; MO; NE; OH; OK; TN; TX; WI; ON
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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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Discussion | Hieracium longipilum may be no longer present in Quebec. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
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 | Torrey ex Hooker: Fl. Bor.-Amer. 1: 298. (1833) | Villars: Prosp. Hist. Pl. Dauphiné, 34. (1779) |
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