Crepis occidentalis subsp. occidentalis

Common names: Largeflower hawksbeard
IllustratedEndemic
Treatment appears in FNA Volume 19. Treatment on page 232. Mentioned on page 233.

Plants 10–40 cm. Stems stipitate-glandular. Leaves 10–20 × 2–4 cm, sharply dentate to pinnately lobed (lobes dentate; distal cauline leaves stipitate-glandular). Heads 10–30. Peduncles tomentulose, stipitate-glandular. Phyllaries 10–13, sparsely to densely stipitate-glandular (lacking dark or long black setae). Florets 18–30. Cypselae golden brown. 2n = 22, 33.


Phenology: Flowering May–Jun.
Habitat: Arid rocky hillsides, sagebrush scrub
Elevation: 1000–2200 m

Distribution

V19-297-distribution-map.gif

Alta., B.C., Sask., Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number."fine" is not a number.

stipitate-glandular +, setose +  and gray-tomentose +
with fine hairs +  and glabrous +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
David J. Bogler +
Nuttall +
runcinate +, lyrate +, lanceolate +  and linear or spatulate +
decurrent +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
runcinate +
2cm;5cm +
tuberculate +, rugose +, muricate +  and smooth +
setose +, tomentulose +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
filiform +
glabrate +  and tomentose +
lobing +, entire +  and lobed +
Largeflower hawksbeard +
zygomorphic +, actinomorphic +  and (3-)5-merous +
1.8 cm18 mm <br />0.018 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
golden brown +
subcylindric +
Alta. +, B.C. +, Sask. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, S.Dak. +, Utah +, Wash. +  and Wyo. +
1000–2200 m +
stipitate-glandular +  and gray-tomentose +
winged +  and beaked +
dispersed +
Arid rocky hillsides, sagebrush scrub +
indeterminate +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
10cm;20cm +
cauline +  and basal +
sharply dentate;pinnately lobed +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
toothed +
dentate +  and entire +
green +  and yellowish +
pinnately-lobed +  and sinuously dentate +
2-carpellate +
yellowish white +
persistent +
connate +  and distinct +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
stipitate-glandular +  and tomentulose +
Flowering May–Jun. +
connate +  and distinct +
stipitate-glandular +
10 +  and 13 +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
J. Acad. Nat. Sci. Philadelphia +
hairy +  and glabrous +
convex;flat +
10 +  and 18 +
spiculate-roughened +
rounded +
exalbuminous +
Illustrated +  and Endemic +
1 +  and 3 +
appendaged +  and truncate +
papillate +
Psilochenia occidentalis +
Crepis occidentalis subsp. occidentalis +
Crepis occidentalis +
subspecies +
taprooted +  and rhizomatous +
8 cm80 mm <br />0.08 m <br /> (40 cm400 mm <br />0.4 m <br />) +
11 +, 6 +, 5 +, 4 +  and 3 +