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Hieracium longiberbe

long-bearded hawkweed, longbeard hawkweed

Pringle's hawkweed

Habit Plants 25–50+ cm. Plants 20–45+ cm.
Stems

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

proximally usually piloso-hirsute (or lanate, hairs 5–8+ mm, usually curled and tangled), sometimes nearly glabrous, distally piloso-hirsute (hairs 1–2+ mm) and stellate-pubescent.

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 (2–)3–8+, cauline (0–)3+;

blades elliptic or spatulate to oblanceolate, lanceolate, or lance-linear, (35–)50–120(–200+) × 10–25(–40+) mm, lengths 2–5(–10+) times widths, bases ± cuneate, margins usually entire, rarely toothed, apices obtuse to acute, faces (proximal leaves) piloso-hirsute (to lanate, hairs 1–3+ mm; distal leaves often ± glabrate).

Peduncles

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

usually stellate-pubescent and stipitate-glandular.

Involucres

campanulate, 7–10 mm.

campanulate, (7–)8–9 mm.

Florets

12–24+;

corollas yellow, 7–12 mm.

12–15+;

corollas yellow, 7–9 mm.

Phyllaries

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

12–15+, apices rounded to acute, abaxial faces stellate-pubescent and/or stipitate-glandular.

Calyculi

bractlets 9–13+.

bractlets 3–5+.

Heads

(3–)6–12+ in corymbiform arrays.

3–12(–20+) in corymbiform arrays.

Cypselae

columnar, ca. 3.5 mm;

pappi of 32–40+, white or stramineous bristles in ± 2 series, 5–6 mm.

columnar, 2.2–4 mm;

pappi of (40–)60–80, white or stramineous bristles in 2+ series, 4–5+ mm.

Hieracium longiberbe

Hieracium pringlei

Phenology Flowering Jul. Flowering Jul–Aug.
Habitat Cliffs Pine, oak, and pine-oak forests
Elevation 30–100 m (100–300 ft) 2000–2300 m (6600–7500 ft)
Distribution
from FNA
OR; WA
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; NM; Mexico; Central America (Guatemala)
[BONAP county map]
Discussion

Hieracium longiberbe is known only from along the Columbia River.

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

Source FNA vol. 19, p. 289. FNA vol. 19, p. 290.
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. lactucella, H. longiberbe, H. longipilum, H. megacephalon, H. murorum, H. nudicaule, H. paniculatum, H. parryi, H. pilosella, H. piloselloides, 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) A. Gray: Proc. Amer. Acad. Arts 19: 69. (1883)
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