View source for Eriogonum cernuum

{{Treatment/ID
|accepted_name=Eriogonum cernuum
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Proc. Acad. Nat. Sci. Philadelphia
|place=4: 14. 1848
|year=1848
}}
|common_names=Nodding wild buckwheat
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Eriogonum cernuum var. psammophilum
|authority=S. L. Welsh
}} {{Treatment/ID/Synonym
|name=Eriogonum cernuum subsp. tenue
|authority=(Torrey & A. Gray) S. Stokes
}} {{Treatment/ID/Synonym
|name=Eriogonum cernuum var. tenue
|authority=Torrey & A. Gray
}} {{Treatment/ID/Synonym
|name=Eriogonum cernuum var. umbraticum
|authority=Eastwood
}} {{Treatment/ID/Synonym
|name=Eriogonum cernuum subsp. viminale
|authority=S. Stokes
}} {{Treatment/ID/Synonym
|name=Eriogonum cernuum var. viminale
|authority=(S. Stokes) Reveal
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Ganysma;Eriogonum cernuum
|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. Ganysma]]</div><div class="higher-taxon"><small>species</small>[[Eriogonum cernuum]]</div></div>
|volume=Volume 5
|mention_page=page 385, 402, 403
|treatment_page=page 401
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> spreading to erect, annual, 0.5–6 dm, glabrous, grayish, greenish or reddish. <b>Stems</b>: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.3–2 dm, glabrous. <b>Leaves</b> basal or sheathing up stems 2–10 cm; petiole 1–4 cm, tomentose; blade round-ovate to orbiculate, (0.5–)1–2(–2.5) × (0.5–)1–2(–2.5) cm, white- to grayish-tomentose abaxially, tomentose to floccose or glabrate and grayish or greenish adaxially, margins plane. <b>Inflorescences</b> cymose, open to diffuse, 5–50 × 5–40 cm; branches glabrous; bracts 3, scalelike, 1–2 × 1–2.5 mm. <b>Peduncles</b> spreading to ascending or deflexed to cernuous, infrequently absent, straight or curved, slender, 0.1–2.5 cm, glabrous. <b>Involucres</b> turbinate, (1–)1.5–2 × 1–1.5 mm, glabrous; teeth 5, erect, 0.4–0.7 mm. <b>Flowers</b> 1–2 mm, glabrous; perianth white to pinkish, becoming rose to red; tepals dimorphic, those of outer whorl pandurate, those of inner whorl obovate; stamens mostly exserted, 1–2 mm; filaments pilose proximally. <b>Achenes</b> light brown to brown, 3-gonous, 1.5–2 mm, glabrous.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Oct.
|habitat=Sandy to gravelly or clayey flats and slopes, mixed grassland, saltbush, sagebrush, and mountain mahogany communities, oak, pinyon-juniper, and conifer woodlands
|elevation=600-3100(-3300) m
|distribution=Alta.;Sask.;Ariz.;Calif.;Colo.;Idaho;Mont.;Nebr.;Nev.;N.Mex.;Oreg.;S.Dak.;Utah;Wash.;Wyo.
|discussion=<p><i>Eriogonum cernuum</i> is widely distributed, being infrequent to common or even abundant and weedy. It is common throughout most of its range in southeastern Oregon, eastern California, southern Idaho, <i>Nevada</i>, Utah, northern Arizona, and New Mexico. The species is rare in southeastern Washington (Franklin County). It is less common and more widely scattered in Colorado, Wyoming, and Montana, and on the northern Great Plains in southern Alberta and Saskatchewan, western South Dakota, and western Nebraska. The northern Great Basin phase, with sessile involucres, has been called var. viminale, but this difference now appears to be ecologic rather than genetic.</p><!--
--><p>Seeds of the nodding wild buckwheat were gathered by the Navajo (Diné) people, pounded into a meal, and eaten dry or made into a porridge (P. A. Vestal 1952; L. C. Wyman and S. K. Harris 1951).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Eriogonum cernuum
|author=
|authority=Nuttall
|rank=species
|parent rank=subgenus
|synonyms=Eriogonum cernuum var. psammophilum;Eriogonum cernuum subsp. tenue;Eriogonum cernuum var. tenue;Eriogonum cernuum var. umbraticum;Eriogonum cernuum subsp. viminale;Eriogonum cernuum var. viminale
|basionyms=
|family=Polygonaceae
|phenology=Flowering Apr–Oct.
|habitat=Sandy to gravelly or clayey flats and slopes, mixed grassland, saltbush, sagebrush, and mountain mahogany communities, oak, pinyon-juniper, and conifer woodlands
|elevation=600-3100(-3300) m
|distribution=Alta.;Sask.;Ariz.;Calif.;Colo.;Idaho;Mont.;Nebr.;Nev.;N.Mex.;Oreg.;S.Dak.;Utah;Wash.;Wyo.
|reference=None
|publication title=Proc. Acad. Nat. Sci. Philadelphia
|publication year=1848
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V5/V5_829.xml
|subfamily=Polygonaceae subfam. Eriogonoideae
|genus=Eriogonum
|subgenus=Eriogonum subg. Ganysma
|species=Eriogonum cernuum
}}<!--

-->[[Category:Treatment]][[Category:Eriogonum subg. Ganysma]]