Difference between revisions of "Erigeron sionis var. trilobatus"

(Maguire ex Cronquist) S. L. Welsh

Rhodora 95: 398. 1993.

EndemicConservation concern
Basionym: Erigeron flagellaris var. trilobatus Maguire ex Cronquist Brittonia 6: 258. 1947
Synonyms: Erigeron proselyticus G. L. Nesom
Treatment appears in FNA Volume 20. Treatment on page 344. Mentioned on page 343.
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|basionyms={{Treatment/ID/Synonym
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|code=E
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|label=Endemic
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|code=C
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|label=Conservation concern
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|basionyms={{Treatment/ID/Basionym
 
|name=Erigeron flagellaris var. trilobatus
 
|name=Erigeron flagellaris var. trilobatus
 
|authority=Maguire ex Cronquist
 
|authority=Maguire ex Cronquist
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|rank=variety
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|publication_title=Brittonia
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|publication_place=6: 258. 1947
 
}}
 
}}
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Erigeron proselyticus
 
|name=Erigeron proselyticus
 
|authority=G. L. Nesom
 
|authority=G. L. Nesom
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|rank=species
 
}}
 
}}
 
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron sionis;Erigeron sionis var. trilobatus
 
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron sionis;Erigeron sionis var. trilobatus
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name=Erigeron sionis var. trilobatus
 
name=Erigeron sionis var. trilobatus
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|authority=(Maguire ex Cronquist) S. L. Welsh
 
|authority=(Maguire ex Cronquist) S. L. Welsh
 
|rank=variety
 
|rank=variety
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|publication title=Rhodora
 
|publication title=Rhodora
 
|publication year=1993
 
|publication year=1993
|special status=
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|special status=Endemic;Conservation concern
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V20_791.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_791.xml
 
|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Erigeron
 
|genus=Erigeron

Latest revision as of 20:05, 5 November 2020

Basal leaves: blades (2–)3–5(–11) mm wide, margins usually entire or dentate, rarely deeply lobed. Ray corollas drying pink to dark blue. 2n = 18.


Phenology: Flowering Jul–Sep.
Habitat: Limestone cliff bases and faces, crevices, ledges, shelves, soil accumulations, talus, limestone gravel, lakeshores, bristlecone pine, spruce-fir-aspen, aspen, limber pine, Engelmann spruce
Elevation: 2200–3100 m

Discussion

Of conservation concern.

The leaves of var. sionis tend to be narrower and more deeply lobed than those of var. trilobatus; morphologic intermediacy makes these plants hard to separate even at varietal rank. Differences in habitat and an essentially allopatric distribution, however, suggest that two evolutionary entities are present.

Selected References

None.

Lower Taxa

None.
Guy L. Nesom +
(Maguire ex Cronquist) S. L. Welsh +
Erigeron flagellaris var. trilobatus +
2200–3100 m +
Limestone cliff bases and faces, crevices, ledges, shelves, soil accumulations, talus, limestone gravel, lakeshores, bristlecone pine, spruce-fir-aspen, aspen, limber pine, Engelmann spruce +
Flowering Jul–Sep. +
Endemic +  and Conservation concern +
Erigeron proselyticus +
Erigeron sionis var. trilobatus +
Erigeron sionis +
variety +