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Hieracium longiberbe

long-bearded hawkweed, longbeard hawkweed

Habit Plants 25–50+ cm. Plants 30–60(–100+) 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), distally stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well (hairs 1–2+ mm).

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 1–5+;

blades (often purple-mottled) lance-elliptic to lanceolate, 50–100 × 10–50+ mm, lengths 2–5 times widths, bases usually cuneate, sometimes rounded to truncate, margins ± dentate or entire, apices acute, faces usually ± piloso-hirsute (at least near margins, hairs 1–3+ mm), sometimes glabrate.

Peduncles

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

stellate-pubescent and stipitate-glandular.

Involucres

campanulate, 7–10 mm.

± obconic, 8–10 mm.

Florets

12–24+;

corollas yellow, 7–12 mm.

40–80+;

corollas yellow, 13–18 mm.

Phyllaries

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

ca. 21+, apices acute to acuminate, abaxial faces stellate-pubescent and stipitate-glandular.

Calyculi

bractlets 9–13+.

bractlets 13–16+.

Heads

(3–)6–12+ in corymbiform arrays.

(1–)3–9+ in corymbiform arrays.

Cypselae

columnar, ca. 3.5 mm;

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

columnar, 2.5–3 mm;

pappi of 30–40+, stramineous bristles in ± 2 series, ca. 5 mm.

Hieracium longiberbe

Hieracium vulgatum

Phenology Flowering Jul. Flowering (Jun–)Jul–Aug.
Habitat Cliffs Disturbed sites, openings in thickets
Elevation 30–100 m (100–300 ft) 10–100+ m (0–300+ ft)
Distribution
from FNA
OR; WA
[WildflowerSearch map]
[BONAP county map]
from FNA
CT; DE; MA; ME; MI; MN; NH; NJ; NY; OR; PA; RI; VT; WA; WI; BC; NB; NL; NS; ON; PE; QC; Greenland; Europe
[WildflowerSearch map]
Discussion

Hieracium longiberbe is known only from along the Columbia River.

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

The correct name for the species here called Hieracium vulgatum may be H. lachenallii C. C. Gmelin (E. Lepage 1971; E. G. Voss 1972–1996, vol. 3). Plants of H. groenlandicum (stems mostly piloso-hirsute and not stipitate-glandular, corolla lobes distally ciliate) are sometimes treated as distinct from H. vulgatum in a narrow sense (stems usually stipitate-glandular and not piloso-hirsute, corolla lobes not ciliate distally).

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

Source FNA vol. 19, p. 289. FNA vol. 19, p. 291.
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. pringlei, H. robinsonii, H. sabaudum, H. scabrum, H. schultzii, H. scouleri, H. traillii, H. triste, H. umbellatum, H. venosum
Synonyms H. amitsokense, H. groenlandicum, H. ivigtutense, H. scholanderi, H. sylowii
Name authority Howell: Fl. N.W. Amer., 395. (1901) Fries: Fl. Hall., 128. (1819)
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