Erigeron leibergii

Piper

Bull. Torrey Bot. Club 28: 41. 1901.

Common names: Leiberg’s fleabane
IllustratedEndemic
Treatment appears in FNA Volume 20. Treatment on page 284. Mentioned on page 271.

Perennials, 7–25 cm; taprooted, caudices woody, branches usually vertical or horizontal (2–10 cm), sheathed by persistent leaf-bases. Stems erect, sparsely to moderately hispidulous to hirsute, minutely glandular to stipitate-glandular. Leaves basal (persistent) and cauline; basal blades sometimes 3-nerved, broadly oblanceolate to obovate or spatulate, 20–90 (–120) × 5–25 mm, margins entire or denticulate, faces moderately hirsuto-villous, stipitate-glandular; cauline blades smaller, narrower, relatively even-sized distally (bases subclasping). Heads 1 (–5) (on branches from proximal axils). Involucres 5–8 × 7–14 mm. Phyllaries in 2–3 series, sparsely to moderately hirsuto-villous, stipitate-glandular. Ray-florets 20–45; corollas usually blue to purplish, sometimes white or pink, 5–12 mm, laminae coiling. Disc corollas 3–4.3 mm. Cypselae flattened, 1.8–2 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 12–16 bristles.


Phenology: Flowering Jun–Aug(–Sep).
Habitat: Cliffs, ledges, talus, and other rocky habitats, mixed conifers
Elevation: 900–2500 m

Discussion

Selected References

None.

Lower Taxa

None.

"narrower" is not a number.

... more about "Erigeron leibergii"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +, corymbiform +  and loose +
indeterminate +  and determinate +
Guy L. Nesom +
9 cm90 mm <br />0.09 m <br /> (12 cm120 mm <br />0.12 m <br />) +
2 cm20 mm <br />0.02 m <br /> (9 cm90 mm <br />0.09 m <br />) +
broadly oblanceolate +  and obovate or spatulate +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
horizontal;vertical +
equal-sized +  and smaller +
Leiberg’s fleabane +
not 2-lipped +  and actinomorphic +
pink +, white +, usually blue +  and purplish +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
flattened +
fertile +  and bisexual +
0.3 cm3 mm <br />0.003 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
fertile +  and bisexual +
B.C. +  and Wash. +
900–2500 m +
strigose +, stipitate-glandular +  and hirsuto-villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Cliffs, ledges, talus, and other rocky habitats, mixed conifers +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
turbinate;hemispheric +
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
more or less dentate to pinnatifid +  and entire +
denticulate +  and entire +
not +  and scarious +
2-carpellate +
Flowering Jun–Aug(–Sep). +
3-nerved +  and 1-nerved +
stipitate-glandular +  and hirsuto-villous +
narrowly elliptic +  and linear-lanceolate +
Bull. Torrey Bot. Club +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Illustrated +  and Endemic +
branched +  and simple +
prostrate +  and decumbent +
hispidulous +  and hirsute minutely glandular +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron leibergii +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
7 cm70 mm <br />0.07 m <br /> (25 cm250 mm <br />0.25 m <br />) +
tree +, shrub +  and subshrub +