View source for Eriogonum umbellatum var. porteri

{{Treatment/ID
|accepted_name=Eriogonum umbellatum var. porteri
|accepted_authority=(Small) S. Stokes
|publications={{Treatment/Publication
|title=Eriogonum,
|place=109. 1936
|year=1936
}}
|common_names=Porter’s sulphur flower
|basionyms={{Treatment/ID/Synonym
|name=Eriogonum porteri
|authority=Small
}}
|synonyms=
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Oligogonum;Eriogonum umbellatum;Eriogonum umbellatum var. porteri
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Polygonaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Polygonaceae subfam. Eriogonoideae]]</div><div class="higher-taxon"><small>genus</small>[[Eriogonum]]</div><div class="higher-taxon"><small>subgenus</small>[[Eriogonum subg. Oligogonum]]</div><div class="higher-taxon"><small>species</small>[[Eriogonum umbellatum]]</div><div class="higher-taxon"><small>variety</small>[[Eriogonum umbellatum var. porteri]]</div></div>
|volume=Volume 5
|mention_page=page 338, 345
|treatment_page=page 340
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> prostrate, cespitose mats, 0.2–0.6 × 1–5 dm. <b>Aerial</b> flowering stems erect or nearly so, 0.1–0.5 dm, floccose to nearly glabrous, without one or more leaflike bracts ca. midlength. <b>Leaves</b> in tight rosettes; blade usually elliptic to spatulate, 0.4–1.1 × 0.3–0.8 cm, glabrous on both surfaces, margins plane. <b>Inflorescences</b> umbellate and subcapitate or capitate; branches shorter than 0.5 cm, without a whorl of bracts ca. midlength; involucral tubes 2–3 mm, lobes 2–3 mm. <b>Flowers</b> 3–6 mm; perianth bright yellow.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Sep.
|habitat=Rocky slopes and ridges, high-elevation sagebrush and meadow communities, subalpine to alpine conifer woodlands
|elevation=(2400-)2700-3700 m
|distribution=Colo.;Nev.;Utah.
|discussion=<p>Variety porteri is a high-elevation counterpart of var. aureum that may not be worthy of taxonomic recognition. At their extremes, the two are markedly distinct, and based on limited observations of cultivated plants, each maintains its basic habit when grown under uniform conditions. In Nevada (Elko, Lander, and Nye counties), var. porteri grows with a similarly reduced alpine expression of the cream-colored var. desereticum. Elsewhere it is widely scattered, mainly in the Uinta and Wasatch mountains of Utah (Beaver, Duchesne, Iron, Piute, Salt Lake, Sevier, Summit, Uintah, Utah, and Wasatch counties), as well as in the Colorado Rocky Mountains (Chaffee, Delta, Gunnison, La Plata, Moffat, and Pitkin counties). A collection supposedly gathered near the Goodman Ranch in Uinta County, Wyoming (Payson 4920, DS, RM, S, UTC), is almost certainly mislabeled. The variety is occasionally seen in cultivation, mainly in Europe.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Eriogonum umbellatum var. porteri
|author=
|authority=(Small) S. Stokes
|rank=variety
|parent rank=species
|synonyms=
|basionyms=Eriogonum porteri
|family=Polygonaceae
|phenology=Flowering Jul–Sep.
|habitat=Rocky slopes and ridges, high-elevation sagebrush and meadow communities, subalpine to alpine conifer woodlands
|elevation=(2400-)2700-3700 m
|distribution=Colo.;Nev.;Utah.
|reference=None
|publication title=Eriogonum,
|publication year=1936
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V5/V5_678.xml
|subfamily=Polygonaceae subfam. Eriogonoideae
|genus=Eriogonum
|subgenus=Eriogonum subg. Oligogonum
|species=Eriogonum umbellatum
|variety=Eriogonum umbellatum var. porteri
}}<!--

-->[[Category:Treatment]][[Category:Eriogonum umbellatum]]