Hieracium scouleri

Hooker

Fl. Bor.-Amer. 1: 298. 1833.

Endemic
Synonyms: Hieracium absonum J. F. Macbride & Payson Hieracium albertinum Farr Hieracium chapacanum Zahn Hieracium cynoglossoides Arvet-Touvet Hieracium scouleri var. albertinum (Farr) G. W. Douglas & G. A. Allen Hieracium scouleri var. griseum A. Nelson
Treatment appears in FNA Volume 19. Treatment on page 289. Mentioned on page 281, 282, 283.

Plants (15–) 35–60+ cm. Stems proximally usually piloso-hirsute (hairs 1–8+ mm) and stellate-pubescent, sometimes glabrous, distally usually piloso-hirsute (hairs 1–8+ mm) and stellate-pubescent, rarely stipitate-glandular as well, sometimes glabrous. Leaves: basal 0 (–5+), cauline (3–) 5–10+; blades lanceolate, oblanceolate or narrowly oblong to elliptic, 50–100 (–200) × 10–25 (–35+) mm, lengths (3–) 4–8+ times widths, bases cuneate, margins entire or denticulate, apices obtuse to acute, faces usually piloso-hirsute (hairs 1–5+ mm) and stellate-pubescent, rarely glabrous. Heads (3–) 9–25+ in corymbiform to thyrsiform arrays. Peduncles usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well, rarely glabrous. Calyculi: bractlets 5–13+. Involucres campanulate, 8–10 mm. Phyllaries 12–21+, apices rounded to acute, abaxial faces piloso-hirsute, stellate-pubescent, and stipitate-glandular. Florets 20–45+; corollas yellow, 10–12 mm. Cypselae (redbrown or black) columnar, ca. 3 mm; pappi of 32–40+, white or stramineous bristles in ± 2 series, 6–7 mm.


Phenology: Flowering Jun–Sep.
Habitat: Disturbed sites, openings in pine forests and sagebrush, borders of meadows
Elevation: 400–3000 m

Distribution

V19-407-distribution-map.gif

Alta., B.C., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Hieracium scouleri"
stipitate-glandular +, stellate-pubescent +  and piloso-hirsute +
rounded;acute +
scarious +
ovate +  and lanceolate +
corymbiform +  and thyrsiform +
indeterminate +  and determinate +
John L. Strother +
Hooker +
cuneate +
compound +  and simple +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
narrowly oblong;elliptic +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
tuberculate +, rugose +, muricate +  and smooth +
deltate;lanceolate or linear +
filiform +
stramineous +  and white +
5 (?) +  and 10 (?) +
zygomorphic +, actinomorphic +  and (3-)5-merous +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
black +  and redbrown +
Alta. +, B.C. +, Calif. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
400–3000 m +
glabrous +, stellate-pubescent +  and piloso-hirsute +
winged +  and beaked +
dispersed +
Disturbed sites, openings in pine forests and sagebrush, borders of meadows +
in corymbiform , paniculiform , thyrsiform , umbelliform or nearly racemiform , arrays +  and singly +
indeterminate +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
campanulate +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
denticulate +  and entire +
2-carpellate +
persistent +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
glabrous +, stipitate-glandular +, piloso-hirsute +  and stellate-pubescent +
not inflated +
Flowering Jun–Sep. +
connate +  and distinct +
12 +  and 21 +
subequal +  and unequal +
Fl. Bor.-Amer. +
flat;convex +
exalbuminous +
glabrous +, stipitate-glandular +, stellate-pubescent +  and piloso-hirsute +
scapiform +
appendaged +  and truncate +
papillate +
Hieracium absonum +, Hieracium albertinum +, Hieracium chapacanum +, Hieracium cynoglossoides +, Hieracium scouleri var. albertinum +  and Hieracium scouleri var. griseum +
Hieracium scouleri +
Hieracium +
species +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
20 cm200 mm <br />0.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
15 cm150 mm <br />0.15 m <br /> (35 cm350 mm <br />0.35 m <br />) +