Erigeron coulteri

Porter in T. C. Porter and J. M. Coulter

in T. C. Porter and J. M. Coulter, Syn. Fl. Colorado, 61. 1874.

Common names: Coulter’s fleabane
Endemic
Treatment appears in FNA Volume 20. Treatment on page 332. Mentioned on page 267.

Perennials, 10–70 cm; rhizomatous, fibrous-rooted, sometimes with branched caudices and scale-leaved stolons. Stems erect, sparsely hispido-villous (hair cross-walls sometimes black), often glabrate, eglandular. Leaves basal (persistent or not) and cauline; proximal blades broadly oblanceolate to elliptic or oblong-lanceolate, 40–120 (–150) × 7–25 mm, margins entire or with 1–5 pairs of shallow teeth, faces sparsely strigose to strigoso-villous, eglandular; cauline blades becoming elliptic-ovate to lanceolate, gradually reduced distally (bases usually clasping). Heads 1 (–4). Involucres 7–10 × 10–16 mm. Phyllaries in 2 (–3) series, hirsuto-villous (hair cross-walls black), minutely glandular. Ray-florets 45–140; corollas 9–25 mm, laminae coiling, white. Disc corollas 3–4.4 mm. Cypselae (1.3–) 1.5–1.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 20–25 bristles. 2n = 18.


Phenology: Flowering (Jun–)Jul–Sep.
Habitat: Moist coniferous woods, moist to wet meadows, open areas along creeks, aspen, spruce-fir
Elevation: 1800–3700 m

Distribution

V20-758-distribution-map.gif

Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron coulteri"
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 +
Porter in T. C. Porter and J. M. Coulter +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
elliptic-ovate +  and lanceolate +
Coulter’s fleabane +
not 2-lipped +  and actinomorphic +
yellow +, usually white +  and bluish or purplish +
0.9 cm9 mm <br />0.009 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.3 cm3 mm <br />0.003 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
fertile +  and bisexual +
Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +  and Wyo. +
1800–3700 m +
strigose +, sparsely strigose +  and strigoso-villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist coniferous woods, moist to wet meadows, open areas along creeks, aspen, spruce-fir +
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 />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
turbinate;hemispheric +
1 cm10 mm <br />0.01 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
with 1-5 pairs +  and entire +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering (Jun–)Jul–Sep. +
3-nerved +  and 1-nerved +
hirsuto-villous +
narrowly elliptic +  and linear-lanceolate +
12 cm120 mm <br />0.12 m <br /> (15 cm150 mm <br />0.15 m <br />) +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
broadly oblanceolate +  and elliptic or oblong-lanceolate +
0.7 cm7 mm <br />0.007 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
in T. C. Porter and J. M. Coulter, Syn. Fl. Colorado, +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
prostrate +  and decumbent +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron coulteri +
Erigeron +
species +
inflated +  and tubular +
shallow +
fibrous-rooted +  and rhizomatous +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (70 cm700 mm <br />0.7 m <br />) +
tree +, shrub +  and subshrub +