View source for Holodiscus microphyllus var. sericeus

{{Treatment/ID
|accepted_name=Holodiscus microphyllus var. sericeus
|accepted_authority=F. A. Ley
|publications={{Treatment/Publication
|title=Bull. Torrey Bot. Club
|place=70: 283. 1943
|year=1943
}}
|basionyms=
|synonyms=
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Spiraeeae;Holodiscus;Holodiscus microphyllus;Holodiscus microphyllus var. sericeus
|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. sericeus]]</div></div>
|volume=Volume 9
|mention_page=page 421
|treatment_page=page 420
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Short-</b>shoot leaf surfaces sessile- and/or stipitate-glandular (often obscured by hairs), abaxial white, sometimes silvery white, veins, intercostal regions, and margins obscured by hairs, densely sericeous, white granular deposits sparse, adaxial white short-villous. <b>Inflorescences</b> 2–6 × 1–4 cm. <b>Pedicels</b> 2–3 mm. <b>Flowers</b>: nectar disc sparsely white-hirsute; sepals densely white-tomentose, usually eglandular; petal base abaxially with few, scattered long hairs.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr-–Jun.
|habitat=Rock outcrops, often limestone, sandy loam soil derived from diorite, margins of ponderosa pine woodlands, Jeffrey pine forests, pinyon pine-juniper woodlands
|elevation=1500–3000 m
|distribution=Ariz.;Calif.;Nev.;Mexico (Baja California).
|discussion=<p>The unusually dense, white to silvery white, sericeous indumentum that characterizes <i></i>var.<i> sericeus</i> is found only in northwestern Arizona, extreme southern <i>Nevada</i>, some desert mountains of southern California, and northern Baja California, Mexico. In this region, <i></i>var.<i> microphyllus</i> also occurs but its populations are usually disjunct. The primary problem in distinguishing <i></i>var.<i> sericeus</i> arises when specimens actually belong to <i></i>var.<i> microphyllus</i> but are abaxially off-white to light gray and tomentose to villous.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Holodiscus microphyllus var. sericeus
|authority=F. A. Ley
|rank=variety
|parent rank=species
|synonyms=
|basionyms=
|family=Rosaceae
|phenology=Flowering Apr-–Jun.
|habitat=Rock outcrops, often limestone, sandy loam soil derived from diorite, margins of ponderosa pine woodlands, Jeffrey pine forests, pinyon pine-juniper woodlands
|elevation=1500–3000 m
|distribution=Ariz.;Calif.;Nev.;Mexico (Baja California).
|reference=None
|publication title=Bull. Torrey Bot. Club
|publication year=1943
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V9/V9_708.xml
|subfamily=Rosaceae subfam. Amygdaloideae
|tribe=Rosaceae tribe Spiraeeae
|genus=Holodiscus
|species=Holodiscus microphyllus
|variety=Holodiscus microphyllus var. sericeus
}}<!--

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