Difference between revisions of "Erigeron breweri var. porphyreticus"

(M. E. Jones) Cronquist

Brittonia 6: 283. 1947.

Endemic
Basionym: Erigeron porphyreticus M. E. Jones Contr. W. Bot. 8: 33. 1898
Treatment appears in FNA Volume 20. Treatment on page 317.
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|year=1947
 
|year=1947
 
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|basionyms={{Treatment/ID/Synonym
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|special_status={{Treatment/ID/Special_status
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|code=E
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|label=Endemic
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}}
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|basionyms={{Treatment/ID/Basionym
 
|name=Erigeron porphyreticus
 
|name=Erigeron porphyreticus
 
|authority=M. E. Jones
 
|authority=M. E. Jones
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|rank=species
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|publication_title=Contr. W. Bot.
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|publication_place=8: 33. 1898
 
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|synonyms=
 
|synonyms=
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|elevation=(1200–)1300–2700(–3100) m
 
|elevation=(1200–)1300–2700(–3100) m
 
|distribution=Calif.;Nev.
 
|distribution=Calif.;Nev.
|discussion=<p>Variety porphyreticus is similar to var. breweri in the production of relatively slender, rhizomelike proximal caudex branches, spreading-deflexed stem vestiture, and blue ray corollas; var. porphyreticus differs in its wirier stems, generally greater development of flowering branches, larger heads, and hirsuto-hispid phyllaries with broad, stramineous-indurate margins and lack of green apical patches.</p>
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|discussion=<p>Variety porphyreticus is similar to <i></i>var.<i> breweri</i> in the production of relatively slender, rhizomelike proximal caudex branches, spreading-deflexed stem vestiture, and blue ray corollas; <i></i>var.<i> porphyreticus</i> differs in its wirier stems, generally greater development of flowering branches, larger heads, and hirsuto-hispid phyllaries with broad, stramineous-indurate margins and lack of green apical patches.</p>
 
|tables=
 
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|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Erigeron breweri var. porphyreticus
 
name=Erigeron breweri var. porphyreticus
|author=
 
 
|authority=(M. E. Jones) Cronquist
 
|authority=(M. E. Jones) Cronquist
 
|rank=variety
 
|rank=variety
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|publication title=Brittonia
 
|publication title=Brittonia
 
|publication year=1947
 
|publication year=1947
|special status=
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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_707.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_707.xml
 
|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Erigeron
 
|genus=Erigeron

Latest revision as of 20:04, 5 November 2020

Plants 20–30 cm; woody roots and relatively slender caudex branches. Stems ascending-erect, often wiry and brittle. Phyllaries hispido-hirsute (hairs translucent, spreading, stiff, relatively thick-based), sometimes slightly glandular.


Phenology: Flowering May–Aug(–Sep).
Habitat: Open, rocky sites, commonly crevices and ledges, sagebrush, pinyon-juniper, ponderosa pine
Elevation: (1200–)1300–2700(–3100) m

Discussion

Variety porphyreticus is similar to var. breweri in the production of relatively slender, rhizomelike proximal caudex branches, spreading-deflexed stem vestiture, and blue ray corollas; var. porphyreticus differs in its wirier stems, generally greater development of flowering branches, larger heads, and hirsuto-hispid phyllaries with broad, stramineous-indurate margins and lack of green apical patches.

Selected References

None.

Lower Taxa

None.
Guy L. Nesom +
(M. E. Jones) Cronquist +
Erigeron porphyreticus +
Calif. +  and Nev. +
(1200–)1300–2700(–3100) m +
Open, rocky sites, commonly crevices and ledges, sagebrush, pinyon-juniper, ponderosa pine +
Flowering May–Aug(–Sep). +
Achaetogeron +  and Trimorpha +
Erigeron breweri var. porphyreticus +
Erigeron breweri +
variety +