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Hieracium longiberbe

long-bearded hawkweed, longbeard hawkweed

European hawkweed

Habit Plants 25–50+ cm. Plants 9–20(–35+) cm.
Stems

proximally piloso-hirsute (hairs 2–8+ mm), sometimes glabrate, distally glabrous or piloso-hirsute (hairs 2–5+ mm).

proximally piloso-hirsute (hairs 1–2+ mm), sometimes stipitate-glandular as well, distally stellate-pubescent and stipitate-glandular (not piloso-hirsute).

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 5–8+, cauline 0(–2+);

blades spatulate to oblanceolate, 15–40 × 5–12 mm, lengths 3–6+ times widths, bases cuneate, margins entire, apices rounded to acute, abaxial faces glabrous or piloso-hirsute (hairs 1–3+ mm), adaxial glabrous or piloso-hispid (hairs 1–3+ mm), sometimes stellate-pubescent as well.

Peduncles

usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous.

stellate-pubescent and stipitate-glandular (not piloso-hirsute).

Involucres

campanulate, 7–10 mm.

hemispheric, 6–8 mm.

Florets

12–24+;

corollas yellow, 7–12 mm.

40–60+;

corollas yellow, 8+ mm.

Phyllaries

12–15+, apices ± rounded, abaxial faces piloso-hirsute and stellate-pubescent.

16–21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute (hairs 0.8–1.5+) as well.

Calyculi

bractlets 9–13+.

bractlets 9–13+.

Heads

(3–)6–12+ in corymbiform arrays.

usually 2–5+ in ± umbelliform 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, 1–2.5 mm;

pappi of 25–40, white bristles in 1 series, 4–5 mm.

Hieracium longiberbe

Hieracium lactucella

Phenology Flowering Jul. Flowering May–Jul.
Habitat Cliffs Pastures, fields
Elevation 30–100 m (100–300 ft) 10+ m (0+ ft)
Distribution
from FNA
OR; WA
[WildflowerSearch map]
[BONAP county map]
from FNA
NY; NS; Europe [Introduced in North America]
[BONAP county map]
Discussion

Hieracium longiberbe is known only from along the Columbia River.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

According to A. E. Roland and M. Zinck (1998), Hieracium auricula Linnaeus and Pilosella auricula (Linnaeus) Schultz-Bipontinus have been misapplied to plants here called H. lactucella (see also discussion at 5. H. caespitosum).

(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
H. abscissum, H. albiflorum, H. alpinum, H. argutum, H. aurantiacum, H. bolanderi, H. brevipilum, H. caespitosum, H. carneum, H. crepidispermum, H. fendleri, H. flagellare, H. greenei, H. gronovii, H. horridum, H. lactucella, H. longipilum, H. megacephalon, H. murorum, H. nudicaule, H. paniculatum, H. parryi, H. pilosella, H. piloselloides, H. pringlei, H. robinsonii, H. sabaudum, H. scabrum, H. schultzii, H. scouleri, H. traillii, H. triste, H. umbellatum, H. venosum, H. vulgatum
H. abscissum, H. albiflorum, H. alpinum, H. argutum, H. aurantiacum, H. bolanderi, H. brevipilum, H. caespitosum, H. carneum, H. crepidispermum, H. fendleri, H. flagellare, H. greenei, H. gronovii, H. horridum, H. longiberbe, H. longipilum, H. megacephalon, H. murorum, H. nudicaule, H. paniculatum, H. parryi, H. pilosella, H. piloselloides, H. pringlei, H. robinsonii, H. sabaudum, H. scabrum, H. schultzii, H. scouleri, H. traillii, H. triste, H. umbellatum, H. venosum, H. vulgatum
Name authority Howell: Fl. N.W. Amer., 395. (1901) Wallroth: Sched. Crit., 408. (1822)
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