View source for Eriogonum thomasii

{{Treatment/ID
|accepted_name=Eriogonum thomasii
|accepted_authority=Torrey
|publications={{Treatment/Publication
|title=in War Department [U.S.], Pacif. Railr. Rep.
|place=5(2): 364. 1857
|year=1857
}}
|common_names=Thomas’s wild buckwheat
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms=
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Ganysma;Eriogonum thomasii
|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 thomasii]]</div></div>
|volume=Volume 5
|mention_page=page 385, 403
|treatment_page=page 404
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> spreading, annual, 0.5–3 dm, glabrous, greenish, sometimes grayish or reddish. <b>Stems</b>: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.2–1 dm, glabrous except for few glands proximally. <b>Leaves</b> basal; petiole 0.5–3 cm; blade round to round-reniform, 0.5–2 × 0.5–2 cm, densely white-tomentose abaxially, floccose to glabrate and greenish adaxially, margins plane. <b>Inflorescences</b> cymose, open to diffuse, 5–25 × 5–25 cm; branches glabrous; bracts 3, scalelike, 1–2.5 × 1–2 mm. <b>Peduncles</b> capillary, spreading to slightly recurved, straight or curved, capillary, 0.5–3 cm, glabrous. <b>Involucres</b> turbinate-campanulate, 0.6–1.2 × 0.7–1.3 mm, glabrous; teeth 5, erect, 0.4–0.6 mm. <b>Flowers</b> 0.8–1 mm in early anthesis, becoming 1.2–2 mm; perianth yellow in early anthesis, becoming white to rose, short-hispidulous; tepals dimorphic, those of outer whorl cordate, becoming saccate-dilated proximally, those of inner whorl spatulate; stamens included, 0.5–0.9 mm; filaments mostly glabrous. <b>Achenes</b> brown to dark brown, usually lenticular, 0.8–1 mm, glabrous. <b>2n</b> = 40.</span><!--

-->{{Treatment/Body
|phenology=Flowering year-round.
|habitat=Sandy flats, washes, and slopes, saltbush, greasewood, creosote bush, and sagebrush communities, pinyon and/or juniper woodlands
|elevation=-70-1200(-1400) m
|distribution=Ariz.;Calif.;Nev.;Utah;Mexico (Baja California;Sonora).
|discussion=<p><i>Eriogonum thomasii</i> is common to abundant and even weedy throughout its range on the Mojave and Sonoran deserts in Arizona, southeastern California, southern <i>Nevada</i>, and southwestern Utah. The distinctive swollen bases of the outer tepals are easy to observe in fruiting material but not always obvious in early anthesis.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Eriogonum thomasii
|authority=Torrey
|rank=species
|parent rank=subgenus
|synonyms=
|basionyms=
|family=Polygonaceae
|phenology=Flowering year-round.
|habitat=Sandy flats, washes, and slopes, saltbush, greasewood, creosote bush, and sagebrush communities, pinyon and/or juniper woodlands
|elevation=-70-1200(-1400) m
|distribution=Ariz.;Calif.;Nev.;Utah;Mexico (Baja California;Sonora).
|reference=None
|publication title=in War Department [U.S.], Pacif. Railr. Rep.
|publication year=1857
|special status=Illustrated
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_835.xml
|subfamily=Polygonaceae subfam. Eriogonoideae
|genus=Eriogonum
|subgenus=Eriogonum subg. Ganysma
|species=Eriogonum thomasii
}}<!--

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