View source for Holodiscus microphyllus var. glabrescens

{{Treatment/ID
|accepted_name=Holodiscus microphyllus var. glabrescens
|accepted_authority=(Greenman) F. A. Ley
|publications={{Treatment/Publication
|title=Bull. Torrey Bot. Club
|place=70: 284. 1943
|year=1943
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Spiraea discolor var. glabrescens
|authority=Greenman
|rank=variety
|publication_title=Erythea
|publication_place=7: 116. 1899
}}
|synonyms={{Treatment/ID/Synonym
|name=Holodiscus discolor var. glabrescens
|authority=(Greenman) Jepson
|rank=variety
}} {{Treatment/ID/Synonym
|name=H. dumosus var. glabrescens
|authority=(Greenman) C. L. Hitchcock
|rank=variety
}} {{Treatment/ID/Synonym
|name=H. glabrescens
|authority=(Greenman) A. Heller
|rank=species
}}
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Spiraeeae;Holodiscus;Holodiscus microphyllus;Holodiscus microphyllus var. glabrescens
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Amygdaloideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Spiraeeae]]</div><div class="higher-taxon"><small>genus</small>[[Holodiscus]]</div><div class="higher-taxon"><small>species</small>[[Holodiscus microphyllus]]</div><div class="higher-taxon"><small>variety</small>[[Holodiscus microphyllus var. glabrescens]]</div></div>
|volume=Volume 9
|mention_page=page 420
|treatment_page=page 421
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Short-</b>shoot leaf surfaces: abaxial light green, veins, intercostal regions, and margins not obscured by hairs, glabrous or glabrate, sessile- or stipitate-glandular, without granular deposits, adaxial sparsely glabrate or glabrous, sessile-glandular, sometimes margins and veins sparsely hairy. <b>Inflorescences</b> 2–10 × 1–7 cm. <b>Pedicels</b> 1–2 mm. <b>Flowers</b>: nectar disc glabrous; sepals glabrous or puberulent, sessile-glandular; petal base glabrous or abaxial midvein with a few long hairs.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Sep.
|habitat=Rock outcrops, talus slopes, mountaintops in alpine and subalpine habitats
|elevation=1000–3000 m
|distribution=Calif.;Idaho;Nev.;Oreg.;Utah.
|discussion=<p>Specimens that belong to <i></i>var.<i> microphyllus</i> are frequently misidentified as <i></i>var.<i> glabrescens</i> when the vestiture is short and dense, such that the leaf surfaces appear to be light green or gray and insufficient magnification is used to see the trichomes. Careful examination is required and in some cases 10× magnification is insufficient due to the short, dense indumentum that occurs in some populations of <i></i>var.<i> microphyllus</i>. Variety glabrescens is glabrous or glabrate with sessile or stipitate glands alone on the smooth green epidermis. The variety inhabits the northern Great Basin region, in areas that recently have been geologically active, or on mountains adjacent to this region that are currently or were recently tectonically active. Individual populations often comprise a small number of individuals that occupy a narrow ecologic zone on mountain peaks.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Holodiscus microphyllus var. glabrescens
|authority=(Greenman) F. A. Ley
|rank=variety
|parent rank=species
|synonyms=Holodiscus discolor var. glabrescens;H. dumosus var. glabrescens;H. glabrescens
|basionyms=Spiraea discolor var. glabrescens
|family=Rosaceae
|phenology=Flowering May–Sep.
|habitat=Rock outcrops, talus slopes, mountaintops in alpine and subalpine habitats
|elevation=1000–3000 m
|distribution=Calif.;Idaho;Nev.;Oreg.;Utah.
|reference=None
|publication title=Bull. Torrey Bot. Club
|publication year=1943
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_709.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Spiraeeae
|genus=Holodiscus
|species=Holodiscus microphyllus
|variety=Holodiscus microphyllus var. glabrescens
}}<!--

-->[[Category:Treatment]][[Category:Holodiscus microphyllus]]