View source for Eriogonum twisselmannii

{{Treatment/ID
|accepted_name=Eriogonum twisselmannii
|accepted_authority=(J. T. Howell) Reveal
|publications={{Treatment/Publication
|title=in P. A. Munz, Suppl. Calif. Fl.
|place=40. 1968
|year=1968
}}
|common_names=Twisselmann’s wild buckwheat
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms={{Treatment/ID/Basionym
|name=Eriogonum douglasii var. twisselmannii
|authority=J. T. Howell
|rank=variety
|publication_title=Leafl. W. Bot.
|publication_place=10: 13. 1963
}}
|synonyms=
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Eriogonum;Eriogonum subg. Oligogonum;Eriogonum twisselmannii
|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 twisselmannii]]</div></div>
|volume=Volume 5
|mention_page=page 332
|treatment_page=page 364
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> matted, occasionally polygamodioecious, (0.2–)0.5–1.5 × 3–4 dm, tomentose. <b>Stems</b>: caudex spreading; aerial flowering stems erect or nearly so, slender, solid, not fistulose, arising at nodes of caudex branches and at distal nodes of short, nonflowering aerial branches, (0.2–)0.5–1.2 dm, tomentose, with a whorl of 4–8 leaflike bracts ca. midlength, similar to leaf blades, 0.4–0.8 × 0.1–0.3 cm. <b>Leaves</b> in loose to congested basal rosettes; petiole 0.2–0.4 cm, thinly tomentose; blade oblanceolate to elliptic, 0.5–1 × (0.2–)0.4–0.6 cm, white- or grayish-tomentose abaxially, thinly tomentose to nearly glabrous and dull green adaxially. <b>Inflorescences</b> capitate, 0.7–1.5 cm wide; branches absent; bracts absent immediately below involucre. <b>Involucres</b> 1 per node, campanulate, (2.5–)4–5 × 4–6 mm; teeth 6–9, lobelike, strongly reflexed, (2–)3–5 mm. <b>Flowers</b> (4–)5–6 mm, including 1–1.3 mm stipelike base; perianth pale yellow, villous abaxially; tepals slightly dimorphic, those of outer whorl obtuse, 3–5 × 3–3.5 mm, those of inner whorl broadly oblanceolate, 5–6 × 2.5–3 mm; stamens exserted, 4–5 mm; filaments pilose proximally. <b>Achenes</b> light brown, 5–5.5 mm, glabrous except for sparsely pubescent beak.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Sep.
|habitat=Rocky outcrops, montane conifer woodlands
|elevation=2300-2600 m
|distribution=Calif.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Eriogonum twisselmannii</i> is a rare species of the southern Sierra <i>Nevada</i> and is known only from Slate Mountain and The Needles in Tulare County. It is worthy of being on a “watch” list of rare plants in California, but because of its remote location, it is not threatened.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Eriogonum twisselmannii
|authority=(J. T. Howell) Reveal
|rank=species
|parent rank=subgenus
|synonyms=
|basionyms=Eriogonum douglasii var. twisselmannii
|family=Polygonaceae
|phenology=Flowering Jun–Sep.
|habitat=Rocky outcrops, montane conifer woodlands
|elevation=2300-2600 m
|distribution=Calif.
|reference=None
|publication title=in P. A. Munz, Suppl. Calif. Fl.
|publication year=1968
|special status=Endemic;Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_745.xml
|subfamily=Polygonaceae subfam. Eriogonoideae
|genus=Eriogonum
|subgenus=Eriogonum subg. Oligogonum
|species=Eriogonum twisselmannii
}}<!--

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