View source for Eriogonum ursinum var. ursinum

{{Treatment/ID
|accepted_name=Eriogonum ursinum var. ursinum
|accepted_authority=
|publications=
|common_names=Bear Valley wild buckwheat
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Eriogonum ovatum
|authority=Greene
|rank=species
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Oligogonum;Eriogonum ursinum;Eriogonum ursinum var. ursinum
|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 ursinum]]</div><div class="higher-taxon"><small>variety</small>[[Eriogonum ursinum var. ursinum]]</div></div>
|volume=Volume 5
|mention_page=
|treatment_page=page 358
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>0.5–4 × 3–6 dm. <b>Aerial</b> flowering stems 0.4–4 dm, thinly tomentose to glabrate. <b>Leaves</b>: petiole 0.1–0.5(–0.8) cm; blade ovate, 0.8–1.4(–2.5) × 0.5–1.2(–2) cm, densely white- or rufous-tomentose abaxially, thinly tomentose or glabrous and greenish adaxially. <b>Inflorescences</b> thinly tomentose to glabrate; proximal bracts 3–8, lanceolate, 0.5–1.5(–2) × 0.3–1 cm, distal bracts scalelike, not midway along branch, 1–5 mm. <b>Involucres</b> turbinate, 3.5–4.5(–5) × 2.5–4 mm. <b>Flowers</b> 4–6 mm at anthesis, 5–6 mm in fruit; perianth pale yellow, rarely yellow, not suffused with blush of color. <b>Achenes</b> 3–3.5 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Sep.
|habitat=Sandy to gravelly, mostly volcanic flats and slopes, oak and montane conifer woodlands
|elevation=(500-)900-2500(-2800) m
|distribution=Calif.
|discussion=<p>Variety ursinum is rather common in the northern Sierra <i>Nevada</i> (Lassen, <i>Nevada</i>, Placer, Plumas, Shasta, and Sierra counties), with a series of disjunct populations on the Trinity-Tehama-Shasta county lines. A low-elevation population (Hutchinson et al. 2693, JEPS) is known from near Pulga along the Feather River in Butte County.</p><!--
--><p>Bear Valley wild buckwheat forms large, colorful mats on the forest floor, with rather compact but compound umbels of pale yellow flowers. The plants do well in the garden. A specimen (T. J. Howell s.n., NY) supposedly gathered somewhere in Oregon is discounted as to location.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Eriogonum ursinum var. ursinum
|authority=
|rank=variety
|parent rank=species
|synonyms=Eriogonum ovatum
|basionyms=
|family=Polygonaceae
|phenology=Flowering May–Sep.
|habitat=Sandy to gravelly, mostly volcanic flats and slopes, oak and montane conifer woodlands
|elevation=(500-)900-2500(-2800) m
|distribution=Calif.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_728.xml
|subfamily=Polygonaceae subfam. Eriogonoideae
|genus=Eriogonum
|subgenus=Eriogonum subg. Oligogonum
|species=Eriogonum ursinum
|variety=Eriogonum ursinum var. ursinum
}}<!--

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