Crepis modocensis subsp. modocensis

Common names: Modoc or Siskiyou hawksbeard
Endemic
Synonyms: Crepis scopulorum Coville
Treatment appears in FNA Volume 19. Treatment on page 230. Mentioned on page 229.

Plants 10–35 cm; setae yellowish, ± straight. Stems (slender, always with primary-axes, branched near or beyond middles) sparsely setose (setae yellowish). Leaves: petioles setose; blades (narrowly elliptic), 10–20 × 2–4 cm. Involucres 11–16 mm. Phyllaries sparsely setose (setae blackish). Cypselae deep greenish to blackish or deep reddish-brown, 7–12 mm, tapered distally, not distinctly beaked; pappi 5–10 mm. 2n = 22


Phenology: Flowering May–Jul.
Habitat: Dry open ridges, rocky slopes
Elevation: 900–2500 m

Distribution

V19-289-distribution-map.gif

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

Discussion

Subspecies modocensis includes a diploid form and apomictic polyploid forms (E. B. Babcock 1947).

Selected References

None.

Lower Taxa

None.

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

setose +, tomentose +, whitish +  and blackish +
with appressed hairs +  and glabrous +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
David J. Bogler +
Greene +
7 cm70 mm <br />0.07 m <br /> (25 cm250 mm <br />0.25 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
decurrent +
compound +  and simple +
tuberculate +, rugose +, muricate +  and smooth +
setose +  and tomentose +
lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
filiform +
lobing +, entire +  and lobed +
Modoc or Siskiyou hawksbeard +
zygomorphic +, actinomorphic +  and (3-)5-merous +
1.3 cm13 mm <br />0.013 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
greenish +  and blackish or deep reddish-brown +
B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
900–2500 m +
tomentulose +
winged +  and beaked +
dispersed +
Dry open ridges, rocky slopes +
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 /> (2.1 cm21 mm <br />0.021 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
10cm;20cm +
cauline +  and basal +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
toothed +
dentate +  and entire +
green +  and yellowish +
2-carpellate +
dusky white +
persistent +
connate +  and distinct +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering May–Jul. +
connate +  and distinct +
8 +  and 18 +
1 cm10 mm <br />0.01 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
hairy +  and glabrous +
convex;flat +
spiculate-roughened +
exalbuminous +
straight +
branched +  and simple +
1 +  and 4 +
slender +  and stout +
appendaged +  and truncate +
papillate +
Crepis scopulorum +
Crepis modocensis subsp. modocensis +
Crepis modocensis +
subspecies +
taprooted +  and rhizomatous +
5 cm50 mm <br />0.05 m <br /> (35 cm350 mm <br />0.35 m <br />) +
11 +, 6 +, 5 +, 4 +  and 3 +