The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

hairy hawkweed, longbeard hawkweed

alpine hawkweed, slender hawkweed, woolly hawkweed

Habit Plants 30–75(–200) cm. Plants (3–)10–20(–40+) cm.
Stems

proximally piloso-hirsute (hairs 6–15+ mm), distally piloso-hirsute (hairs 3–10+ mm), sometimes stellate-pubescent as well.

proximally glabrous or stellate-pubescent, distally usually piloso-hirsute (hairs 1–8+ mm) and/or stellate-pubescent and/or stipitate-glandular, sometimes glabrous.

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–)5–12+, cauline 0–2(–3+);

blades obovate to spatulate or oblanceolate, (15–)25–40(–60+) × 5–10(–25+) mm, lengths 2–3+ times widths, bases cuneate, margins usually entire, rarely denticulate, apices rounded to obtuse (often apiculate), faces usually glabrous, sometimes stipitate-glandular and/or scabrellous.

Peduncles

stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well.

stellate-pubescent and stipitate-glandular.

Involucres

campanulate, 6–8(–10) mm.

± campanulate, (6–)7–10 mm.

Florets

30–40(–60);

corollas yellow, ca. 7 mm.

20–60+;

corollas yellow, 5–6 mm.

Phyllaries

12–21+, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular.

13–21+, apices acuminate, abaxial faces piloso-hirsute (hairs 1–3+ mm), stellate-pubescent, and stipitate-glandular.

Calyculi

bractlets 9–13+.

bractlets 5–8+.

Heads

10–20+ in paniculiform to nearly racemiform arrays.

usually 2–8+ in corymbiform arrays, sometimes borne singly.

Cypselae

urceolate, 3–4+ mm;

pappi of 35–40+, stramineous to sordid bristles in 2+ series, 5.5–6.5 mm.

columnar, 1.5–3.5 mm;

pappi of 30–40+ white or sordid bristles in ± 2 series, 4–5 mm.

Hieracium longipilum

Hieracium triste

Phenology Flowering Jul–Sep. Flowering (Jun–)Jul–Aug(–Sep).
Habitat Fields, prairies, roadsides Rocky slopes, stream sides, conifer forests, drying meadows, subalpine meadows
Elevation 100–400 m (300–1300 ft) 100–3500 m (300–11500 ft)
Distribution
from FNA
AR; IA; IL; IN; KS; KY; LA; MI; MN; MO; NE; OH; OK; TN; TX; WI; ON
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; CA; CO; ID; MT; NM; OR; UT; WA; WY; AB; BC; NT; YT
[WildflowerSearch map]
[BONAP county map]
Discussion

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. 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. longiberbe, 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. umbellatum, H. venosum, H. vulgatum
Synonyms Chlorocrepis tristis, H. gracile, H. gracile var. alaskanum, H. gracile var. densifloccosum, H. gracile var. detonsum, H. gracile var. yukonense, H. triste var. fulvum, H. triste subsp. gracile, H. triste var. gracile, H. triste var. tristiforme
Name authority Torrey ex Hooker: Fl. Bor.-Amer. 1: 298. (1833) Willdenow ex Sprengel: Syst. Veg. 3: 640. (1826)
Web links