Erigeron cascadensis

A. Heller

Muhlenbergia 1: 6. 1900.

Common names: Cascade fleabane
Endemic
Synonyms: Erigeron pachyrhizus Greene Erigeron spatulifolius Howell
Treatment appears in FNA Volume 20. Treatment on page 284. Mentioned on page 271.

Perennials, 5–15 cm; taprooted, caudices woody, branches usually vertical or horizontal (2–10 cm), sheathed by persistent leaf-bases. Stems erect, glabrous or sparsely villous, sparsely minutely glandular. Leaves basal (persistent) and cauline; basal blades sometimes 3-nerved, oblanceolate to obovate or spatulate, 25–90 × 5–17 mm, margins entire or dentate on distal 1/2 or near apices, faces glabrous, sparsely minutely glandular; cauline blades lanceolate to ovate, smaller than basal, often relatively even-sized distally (bases clasping to subclasping). Heads 1 (–3) (on branches from proximal axils). Involucres 5–8 × 8–14 mm. Phyllaries in 2–3 series, sparsely to moderately hirsuto-villous, sometimes sparsely minutely glandular. Ray-florets 30–50; corollas white, less commonly purplish, 6–10 mm, laminae not coiling or reflexing. Disc corollas 3.7–4.4 mm. Cypselae flattened, 1.9–2.2 mm, 2-nerved, faces sparsely strigose or glabrous; pappi: outer of setae, inner of 14–20 bristles.


Phenology: Flowering Jun–Aug.
Habitat: Crevices, talus, rhyolite outcrops, subalpine meadows
Elevation: 1700–1900 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron cascadensis"
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 +
A. Heller +
2.5 cm25 mm <br />0.025 m <br /> (9 cm90 mm <br />0.09 m <br />) +
oblanceolate +  and obovate or spatulate +
0.5 cm5 mm <br />0.005 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
horizontal;vertical +
lanceolate +  and ovate +
equal-sized +  and smaller +
Cascade fleabane +
not 2-lipped +  and actinomorphic +
purplish +  and white +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
flattened +
fertile +  and bisexual +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
fertile +  and bisexual +
1700–1900 m +
glabrous +  and strigose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Crevices, talus, rhyolite outcrops, subalpine meadows +
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 +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
not coiling +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
dentate +  and entire +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering Jun–Aug. +
3-nerved +  and 1-nerved +
hirsuto-villous +
narrowly elliptic +  and linear-lanceolate +
Muhlenbergia +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
branched +  and simple +
prostrate +  and decumbent +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron pachyrhizus +  and Erigeron spatulifolius +
Erigeron cascadensis +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
tree +, shrub +  and subshrub +