View source for Gamochaeta sphacelata

{{Treatment/ID
|accepted_name=Gamochaeta sphacelata
|accepted_authority=(Kunth) Cabrera
|publications={{Treatment/Publication
|title=Bol. Soc. Argent. Bot.
|place=9: 380. 1961
|year=1961
}}
|common_names=Owl’s crown
|basionyms={{Treatment/ID/Basionym
|name=Gnaphalium sphacelatum
|authority=Kunth
|publication_title=in A. von Humboldt et al., Nov. Gen. Sp.
|publication_place=4(fol.): 67. 1818;  4(qto.): 86. 1820 (as sphacilatum)
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Gamochaeta;Gamochaeta sphacelata
|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>[[Gamochaeta]]</div><div class="higher-taxon"><small>species</small>[[Gamochaeta sphacelata]]</div></div>
|volume=Volume 19
|mention_page=page 432
|treatment_page=page 434
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> 10–35(–50) cm; usually taprooted, rarely fibrous-rooted. <b>Stems</b> erect to ascending, densely gray-white pannose. <b>Leaves</b> basal and cauline, basal usually withering before flowering; blades linear to narrowly oblanceolate (often folded along midveins), 1–4 cm × 1–3(–5) mm (distally becoming ± patent, arcuate bracts surpassing the heads), faces concolor or weakly bicolor, pannose-tomentose (± equally grayish to whitish, basal cells of hairs on adaxial faces persistent, expanded, glassy). <b>Heads</b> in terminal glomerules 1 cm or in interrupted, spiciform arrays 2–14 cm × 10–12(–14) mm (pressed; glomerules sometimes axillary). <b>Involucres</b> cylindro-campanulate, 3.5–4(–5) mm, sparsely arachnose. <b>Phyllaries</b> in (3–)4–5 series, outer triangular, lengths 1/3–1/2 inner, apices (brown) acute-acuminate (usually inrolled and spreading or recurved), inner triangular-lanceolate, laminae purplish (in bud) to whitish or silvery (in fruit), apices (usually striate) acute (not apiculate). <b>Florets</b>: bisexual 3–5; all corollas usually purplish distally. <b>Cypselae</b> (tan) 0.5–0.6 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Sep.
|habitat=Grasslands, pine-oak woodlands, dry and wet sites
|elevation=2000–2800 m
|distribution=Tex.;Mexico;South America (scattered;fide A. L. Cabrera 1977+;part 10).
|discussion=<p><i>Gamochaeta sphacelata</i> is recognized by its linear to narrowly oblanceolate, concolor leaves, interrupted, spiciform arrays of heads in compact axillary glomerules or on lateral branches, glomerules subtended by ± patent, arcuate bracts, dark brown involucres, and acute-acuminate, recurving tips of outer and mid phyllaries. Roots are typically lignescent taproots. As in <i>G. purpurea</i>, the basal cells of each hair on adaxial leaf faces are persistent, expanded, and glassy.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Gamochaeta sphacelata
|author=
|authority=(Kunth) Cabrera
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Gnaphalium sphacelatum
|family=Asteraceae
|phenology=Flowering Jul–Sep.
|habitat=Grasslands, pine-oak woodlands, dry and wet sites
|elevation=2000–2800 m
|distribution=Tex.;Mexico;South America (scattered;fide A. L. Cabrera 1977+;part 10).
|reference=None
|publication title=Bol. Soc. Argent. Bot.
|publication year=1961
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_713.xml
|tribe=Asteraceae tribe Gnaphalieae
|genus=Gamochaeta
|species=Gamochaeta sphacelata
}}<!--

-->[[Category:Treatment]][[Category:Gamochaeta]]