View source for Pseudognaphalium saxicola

{{Treatment/ID
|accepted_name=Pseudognaphalium saxicola
|accepted_authority=(Fassett) H. E. Ballard & Feller
|publications={{Treatment/Publication
|title=Sida
|place=21: 777. 2004
|year=2004
}}
|common_names=Cliff cudweed
|basionyms={{Treatment/ID/Basionym
|name=Gnaphalium saxicola
|authority=Fassett
|rank=species
|publication_title=Rhodora
|publication_place=33: 75. 1931
}}
|synonyms={{Treatment/ID/Synonym
|name=Gnaphalium obtusifolium var. saxicola
|authority=(Fassett) Cronquist
|rank=variety
}} {{Treatment/ID/Synonym
|name=Pseudognaphalium obtusifolium var. saxicola
|authority=(Fassett) Kartesz
|rank=variety
}}
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Pseudognaphalium;Pseudognaphalium saxicola
|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>[[Pseudognaphalium]]</div><div class="higher-taxon"><small>species</small>[[Pseudognaphalium saxicola]]</div></div>
|volume=Volume 19
|mention_page=page 415, 417, 421
|treatment_page=page 420
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> 4–15(–30) cm; taprooted. <b>Stems</b> (filiform) persistently tomentose (indument a loose, envelope-like, transparent haze of extremely thin hairs, doubling apparent stem width), not glandular. <b>Leaf</b> blades elliptic-oblanceolate to oblanceolate, 0.5–3 cm × 2–6 mm (largest at midstem), bases not clasping, not decurrent, margins flat, faces concolor, green, thinly arachnoid-tomentose to glabrate, not glandular (veiny reticulum evident). <b>Heads</b> (2–4) in terminal, capitate clusters (usually immediately subtended by distalmost cauline leaf, clusters sometimes in subcorymbiform arrays). <b>Involucres</b> turbinate, 4–5 mm. <b>Phyllaries</b> in 3(–4) series, whitish to slightly tawny (hyaline, shiny), narrowly triangular to narrowly oblong-triangular, glabrous. <b>Pistillate</b> florets 25–28. <b>Bisexual</b> florets 6–7. <b>Cypselae</b> not ridged, smooth.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Jul–)Aug–Sep.
|habitat=Mostly bare sandstone cliff faces, ledges, and cracks, s- to e-facing, commonly shaded
|elevation=200–300 m
|distribution=Wis.
|discussion=<p><i>Pseudognaphalium saxicola</i> probably is an evolutionary derivative of <i>P. obtusifolium</i>. Plants of <i>P. saxicola</i> are relatively small and have relatively few, relatively small heads and occur in a specialized habitat; they constitute the only narrowly endemic species of <i>Pseudognaphalium</i> in the United States. Depauperate individuals of <i>P. obtusifolium</i> from localities over its whole geographic range may sometimes be as short as 5–10 cm and similar in habit to <i>P. saxicola</i>; such plants differ from <i>P. saxicola</i> in their close and denser stem vestiture, bicolor and relatively narrow leaves, larger heads with greater numbers of pistillate florets, and broader phyllaries with rounded apices.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pseudognaphalium saxicola
|authority=(Fassett) H. E. Ballard & Feller
|rank=species
|parent rank=genus
|synonyms=Gnaphalium obtusifolium var. saxicola;Pseudognaphalium obtusifolium var. saxicola
|basionyms=Gnaphalium saxicola
|family=Asteraceae
|phenology=Flowering (Jul–)Aug–Sep.
|habitat=Mostly bare sandstone cliff faces, ledges, and cracks, s- to e-facing, commonly shaded
|elevation=200–300 m
|distribution=Wis.
|reference=None
|publication title=Sida
|publication year=2004
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V19_687.xml
|tribe=Asteraceae tribe Gnaphalieae
|genus=Pseudognaphalium
|species=Pseudognaphalium saxicola
}}<!--

-->[[Category:Treatment]][[Category:Pseudognaphalium]]