Difference between revisions of "Eriogonum flavum var. piperi"

(Greene) M. E. Jones

Contr. W. Bot. 11: 7. 1903.

Common names: Piper’s wild buckwheat
Endemic
Basionym: Eriogonum piperi Greene Pittonia 3: 263. 1898
Synonyms: Eriogonum flavum subsp. piperi (Greene) S. Stokes
Treatment appears in FNA Volume 5. Treatment on page 372. Mentioned on page 371.
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|common_names=Piper’s wild buckwheat
 
|common_names=Piper’s wild buckwheat
|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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|basionyms={{Treatment/ID/Basionym
 
|name=Eriogonum piperi
 
|name=Eriogonum piperi
 
|authority=Greene
 
|authority=Greene
 +
|rank=species
 +
|publication_title=Pittonia
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|publication_place=3: 263. 1898
 
}}
 
}}
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Eriogonum flavum subsp. piperi
 
|name=Eriogonum flavum subsp. piperi
 
|authority=(Greene) S. Stokes
 
|authority=(Greene) S. Stokes
 +
|rank=subspecies
 
}}
 
}}
 
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum flavum;Eriogonum flavum var. piperi
 
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum flavum;Eriogonum flavum var. piperi
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name=Eriogonum flavum var. piperi
 
name=Eriogonum flavum var. piperi
|author=
 
 
|authority=(Greene) M. E. Jones
 
|authority=(Greene) M. E. Jones
 
|rank=variety
 
|rank=variety
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|publication title=Contr. W. Bot.
 
|publication title=Contr. W. Bot.
 
|publication year=1903
 
|publication year=1903
|special status=
+
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V5/V5_767.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_767.xml
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|subfamily=Polygonaceae subfam. Eriogonoideae
 
|genus=Eriogonum
 
|genus=Eriogonum

Latest revision as of 22:13, 5 November 2020

Plants loose to compact mats, 1–6 dm wide. Aerial flowering stems mostly erect, (0.5–)1–2(–3) dm. Leaf blades linear-oblanceolate to oblong or narrowly elliptic, 2–7(–9) × 0.3–0.8(–1) cm, densely tomentose abaxially, tomentose to floccose or glabrous and greenish adaxially. Inflorescences subcapitate to umbellate; branches 0.2–1 cm. Involucres usually turbinate, 4–9 mm. Flowers (4–)5–7 mm, including 1–1.5 mm stipelike base; perianth pale to bright yellow. 2n = 76, 80.


Phenology: Flowering Jun–Sep.
Habitat: Sandy to gravelly flats and slopes in mixed grassland and sagebrush communities, and in montane to subalpine conifer woodlands
Elevation: (700-)1200-2800(-3200) m

Distribution

V5 767-distribution-map.gif

Alta., B.C., Idaho, Mont., Oreg., Wash., Wyo.

Discussion

Variety piperi is the common and widespread phase of the species, found mainly west of the Continental Divide in southern Alberta, southern British Columbia, eastern Washington, northern Idaho, and western Montana south into northeastern Oregon and northwestern Wyoming. It is only slightly variable, the major exception being depauperate individuals at high elevations in harsh exposures; these have been recognized by some as var. polyphyllum. The length of the stipelike base shortens from west to east, but only rarely are individuals in Montana troublesome to place either here or in var. flavum. The plants do well in cultivation and are now widely available.

Selected References

None.

Lower Taxa

None.
James L. Reveal +
(Greene) M. E. Jones +
Eriogonum piperi +
Piper’s wild buckwheat +
Alta. +, B.C. +, Idaho +, Mont. +, Oreg. +, Wash. +  and Wyo. +
(700-)1200-2800(-3200) m +
Sandy to gravelly flats and slopes in mixed grassland and sagebrush communities, and in montane to subalpine conifer woodlands +
Flowering Jun–Sep. +
Contr. W. Bot. +
Eriogonum flavum subsp. piperi +
Eriogonum flavum var. piperi +
Eriogonum flavum +
variety +