View source for Hesperevax acaulis var. acaulis

{{Treatment/ID
|accepted_name=Hesperevax acaulis var. acaulis
|accepted_authority=
|publications=
|common_names=Stemless evax
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Hesperevax;Hesperevax acaulis;Hesperevax acaulis var. acaulis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Gnaphalieae]]</div><div class="higher-taxon"><small>genus</small>[[Hesperevax]]</div><div class="higher-taxon"><small>species</small>[[Hesperevax acaulis]]</div><div class="higher-taxon"><small>variety</small>[[Hesperevax acaulis var. acaulis]]</div></div>
|volume=Volume 19
|mention_page=
|treatment_page=page 469
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>1–2(–4) cm. <b>Stems</b> usually 0, sometimes 1(–7), ± prostrate; branches 0. <b>Leaves</b> basal or cauline, sessile or obscurely petiolate, largest mostly 7–12 × 0.5–2 mm; petiole lengths 0–0.8 times blade lengths; blades oblanceolate, acute; capitular leaves ± erect. <b>Heads</b> borne singly or, sometimes, in glomerules of 2–8, largest 2.5–3 × 2–2.5 mm. <b>Receptacles</b> 0.8–1.4 × 0.8–1.4 mm. <b>Pistillate</b> paleae in 3–5 series, 2–3 mm. <b>Staminate</b> paleae: longest 1.9–2.4 mm. <b>Functionally</b> staminate florets 2–12; corollas 0.7–1 mm. <b>Cypselae</b> mostly 0.6–0.8 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting mid Mar–mid May.
|habitat=Open, dry or vernally moist, sandy to gravelly soils in swales, drainages, grasslands, chaparral, woodland clearings, sometimes in moss or other turf
|elevation=30–900 m
|distribution=Calif.;Oreg.
|discussion=<p>Geographically, <i></i>var.<i> acaulis</i> is mainly intermediate with the other two varieties, usually occurring at lower elevations where sympatric. It is also morphologically intermediate in some characters. Typical forms, most frequent along the Sierra <i>Nevada</i> foothills, are distinguished by stems 0 and leaves narrowest relative to lengths. A recent collection from southwestern Oregon is intermediate toward <i></i>var.<i> robustior</i>; it may be introduced, or it may represent previously unsampled variation in the region.</p><!--
--><p>Kellogg’s protologue described pistillate paleae like those of <i>Stylocline</i>, suggesting that he may have been looking also at plants of <i>Ancistrocarphus keilii</i>. The two taxa are not known to be sympatric. The type material clearly belongs to <i>Hesperevax</i>. Besides its saccate pistillate paleae, <i>A. keilii</i> differs by petioles longer than blades with bases expanded, 3-nerved, and parchment-like.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Hesperevax acaulis var. acaulis
|authority=
|rank=variety
|parent rank=species
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering and fruiting mid Mar–mid May.
|habitat=Open, dry or vernally moist, sandy to gravelly soils in swales, drainages, grasslands, chaparral, woodland clearings, sometimes in moss or other turf
|elevation=30–900 m
|distribution=Calif.;Oreg.
|reference=None
|publication title=
|publication year=
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V19_786.xml
|tribe=Asteraceae tribe Gnaphalieae
|genus=Hesperevax
|species=Hesperevax acaulis
|variety=Hesperevax acaulis var. acaulis
}}<!--

-->[[Category:Treatment]][[Category:Hesperevax acaulis]]