Difference between revisions of "Erigeron oreganus"

A. Gray

Proc. Amer. Acad. Arts 19: 2. 1883.

Common names: Gorge fleabane
Endemic
Treatment appears in FNA Volume 20. Treatment on page 284. Mentioned on page 259, 271, 285.
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|common_names=Gorge fleabane
 
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|elevation=20–400 m
 
|elevation=20–400 m
 
|distribution=Oreg.;Wash.
 
|distribution=Oreg.;Wash.
|discussion=<p>Erigeron oreganus grows in the Columbia River Gorge, primarily on the north side.</p>
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|discussion=<p><i>Erigeron oreganus</i> grows in the Columbia River Gorge, primarily on the north side.</p>
 
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name=Erigeron oreganus
 
name=Erigeron oreganus
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|authority=A. Gray
 
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|publication title=Proc. Amer. Acad. Arts
 
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|publication year=1883
 
|publication year=1883
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|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V20_586.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_586.xml
 
|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Erigeron
 
|genus=Erigeron

Latest revision as of 20:04, 5 November 2020

Perennials, 5–15 cm; stoutly taprooted, caudices usually simple. Stems decumbent to basally ascending or erect, moderately villous, stipitate-glandular. Leaves basal (persistent) and cauline; basal blades (1-nerved or weakly 3-nerved) obovate to spatulate, mostly 20–60(–100) × 5–15(–25) mm, margins usually coarsely dentate or incised, sometimes shallowly serrate, faces sparsely to moderately villous, stipitate-glandular; cauline gradually or little reduced distally (bases not clasping). Heads 1(–4) (on branches from proximal axils). Involucres 5–7 × 9–13 mm. Phyllaries in 2–3 series, moderately villous, minutely stipitate-glandular. Ray florets 30–60; corollas white to pink, 5–8 mm, laminae not coiling or reflexing. Disc corollas 3.4–4.7 mm. Cypselae flattened, 1.2–1.4 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 15–20 bristles (weakly barbellate and curled and twisted to at least distal 1/2).


Phenology: Flowering May–Sep.
Habitat: Moist shady cliffs and ledges
Elevation: 20–400 m

Discussion

Erigeron oreganus grows in the Columbia River Gorge, primarily on the north side.

Selected References

None.

Lower Taxa

None.