Crepis barbigera

Leiberg ex Coville

Contr. U.S. Natl. Herb. 3: 565, plate 26. 1896.

Endemic
Treatment appears in FNA Volume 19. Treatment on page 227. Mentioned on page 224.

Perennials, 20–80 cm (taproots slender, caudices swollen). Stems 1–3 (–5), erect, branched (branches strict with relatively few secondary branches), sparsely to densely tomentulose. Leaves basal and cauline; petiolate (petiole bases broadened, clasping); blades elliptic-lanceolate, 10–40 × 2–7 cm, margins deeply pinnately lobed (lobes mostly lanceolate or falcate, usually entire, rarely with 1–2 teeth), apices attentuate, faces tomentose or glabrate, sometimes setose. Heads 15–20+, in congested, corymbiform arrays. Calyculi of 5–7, lanceolate, green-setose bractlets 2–5 mm. Involucres cylindric, 9–17 × 4–7 mm. Phyllaries 6–10, lanceolate, 12–15 mm (margins yellowish, scarious), apices acute, abaxial faces tomentulose and coarsely green-setose, adaxial glabrous or with fine hairs. Florets 8–25; corollas yellow, 18–20 mm. Cypselae dark-brown to olive, subcylindric, 8–9 mm, apices tapered, ribs 10–12 (strong); pappi whitish or yellowish white, 6–9 mm. 2n = 44, 55, 88.


Phenology: Flowering May–Jul.
Habitat: Open rocky places, sandy slopes, dry pine-oak woods, sagebrush slopes, foothills and plains
Elevation: 100–2000 m

Discussion

Crepis barbigera is recognized by its relatively tall stature, deeply pinnately lobed leaves, tomentulose stems, and phyllaries with coarse, green, eglandular setae. It is a complex of polyploid, apomictic forms, combining characteristics of C. atribarba, C. acuminata, and C. modocensis, from which the species is presumed to have been derived by intercrossing (E. B. Babcock 1947).

Selected References

None.

Lower Taxa

None.

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

... more about "Crepis barbigera"
88 +, 55 +  and 44 +
green-setose +  and tomentulose +
with fine hairs +  and glabrous +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
David J. Bogler +
Leiberg ex Coville +
runcinate +, lyrate +, lanceolate +  and linear or spatulate +
decurrent +
compound +  and simple +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
elliptic-lanceolate +
2cm;7cm +
tuberculate +, rugose +, muricate +  and smooth +
lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
filiform +
lobing +, entire +  and lobed +
zygomorphic +, actinomorphic +  and (3-)5-merous +
1.8 cm18 mm <br />0.018 m <br /> (2 cm20 mm <br />0.02 m <br />) +
dark-brown +  and olive +
subcylindric +
Idaho +, Oreg. +  and Wash. +
100–2000 m +
setose +, glabrate +  and tomentose +
winged +  and beaked +
dispersed +
Open rocky places, sandy slopes, dry pine-oak woods, sagebrush slopes, foothills and plains +
indeterminate +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
cauline +  and basal +
toothed +
dentate +  and entire +
green +  and yellowish +
2-carpellate +
yellowish white +  and whitish +
persistent +
connate +  and distinct +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering May–Jul. +
connate +  and distinct +
6 +  and 10 +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Contr. U.S. Natl. Herb. +
hairy +  and glabrous +
convex;flat +
10 +  and 12 +
spiculate-roughened +
exalbuminous +
3 (?) +  and 5 (?) +
1 +  and 3 +
appendaged +  and truncate +
papillate +
Undefined tribe Lactuceae +
Crepis barbigera +
species +
taprooted +  and rhizomatous +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
shrub +  and subshrub +
11 +, 6 +, 5 +, 4 +  and 3 +