Crepis modocensis subsp. rostrata

(Coville) Babcock & Stebbins

Publ. Carnegie Inst. Wash. 504: 152. 1938.

Endemic
Basionym: Crepis rostrata Coville Contr. U.S. Natl. Herb. 3: 564, plate 25. 1896
Treatment appears in FNA Volume 19. Treatment on page 230. Mentioned on page 229.

Plants 15–30 cm; setae whitish, conspicuously curled or crisped (1–2 mm). Stems densely setose or tomentose. Leaves: petioles setose; blades 10–15 × 3–4 cm (tomentulose or glabrate, midribs setose). Involucres 12–17 mm. Phyllaries densely setose or tomentose. Cypselae greenish black, 7–10 mm, beaked (beaks 1–2 mm, ribs alternating strong and weak); pappi 7–10 mm. 2n = 22, 33, 44.


Phenology: Flowering May–Jul.
Habitat: Dry open places, rocky ridges
Elevation: 1000–1100 m

Discussion

Subspecies rostrata is distinguished mainly by the dense curly setae of the involucres and cypselae with relatively short, coarse beaks.

Selected References

None.

Lower Taxa

None.

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

44 +, 33 +  and 22 +
setose +, tomentose +, whitish +  and blackish +
with appressed hairs +  and glabrous +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
David J. Bogler +
(Coville) Babcock & Stebbins +
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 +
Crepis rostrata +
compound +  and simple +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
3cm;4cm +
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 +
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 black +
subcylindric +  and fusiform +
B.C. +  and Wash. +
1000–1100 m +
tomentulose +
winged +  and beaked +
dispersed +
Dry open places, rocky ridges +
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 />) +
1.2 cm12 mm <br />0.012 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cauline +  and basal +
toothed +
dentate +  and entire +
green +  and yellowish +
2-carpellate +
dusky white +
persistent +
connate +  and distinct +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering May–Jul. +
connate +  and distinct +
tomentose +  and setose +
8 +  and 18 +
1 cm10 mm <br />0.01 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Publ. Carnegie Inst. Wash. +
hairy +  and glabrous +
convex;flat +
spiculate-roughened +
exalbuminous +
crisped +  and curled +
branched +  and simple +
1 +  and 4 +
slender +  and stout +
appendaged +  and truncate +
papillate +
Undefined tribe Lactuceae +
Crepis modocensis subsp. rostrata +
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 +