View source for Amphipappus

{{Treatment/ID
|accepted_name=Amphipappus
|accepted_authority=Torrey & A. Gray
|publications={{Treatment/Publication
|title=Boston J. Nat. Hist.
|place=5: 107. 1845
|year=1845
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Amphipappus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Amphipappus]]</div></div>
|etymology=Greek amphi- , double or two, and pappos, pappus alluding to dimorphic pappi, ray cypselae and disc cypselae
|volume=Volume 20
|mention_page=page 5
|treatment_page=page 186
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 30–60 cm (rounded). <b>Stems</b> erect (bark whitish), intricately branched, becoming leafless and spinescent, branchlets glabrous or densely, hirtellous. <b>Leaves</b> cauline; alternate (ascending); petiolate to subsessile; blades 1-nerved, obovate to narrowly elliptic, margins entire, faces glabrous or hirtellous, often resinous. <b>Heads</b> radiate (discoid), (2–4) in glomerate, terminal clusters, these in corymbiform arrays. <b>Involucres</b> turbino-cylindric, 4–5.5 × 2–3 mm. <b>Phyllaries</b> 7–12 in 3 series, greenish white, 1-nerved (outer keeled), ovate to elliptic, unequal, thin-indurate, margins not scarious, faces glabrous. <b>Receptacles</b> flat, pitted, epaleate. <b>Ray</b> florets (0–)1–2, pistillate, fertile; corollas yellow (laminae slightly longer than involucres). <b>Disc</b> florets 3–7, functionally staminate; corollas yellow, tubes longer than narrowly funnelform throats (nerves 1, yellow, not resinous), lobes 5, reflexed or coiling back, lanceolate; style-branch appendages triangular (nonfunctional, lacking stigmatic lines). <b>Cypselae</b> (ray) oblong-elliptic to obovoid, ± flattened, 2-nerved, faces moderately villous; pappi persistent, of 15–20, stramineous, basally connate, flattened, slender, barbellate, apically attenuate bristles in 1 series (disc bristles longer than ray, sometimes undulate or twisted). <b>x</b> = 9.</span><!--

-->{{Treatment/Body
|distribution=sw United States.
|discussion=<p>Species 1.</p><!--
--><p><i>Amphipappus</i> is characterized by its low-shrubby, intricately branched habit and corymbiform, glomerate clusters of small, few-flowered heads, functionally staminate disc florets, and pappi of short, barbellate bristles, the fertile ray cypselae with pappi of shorter, flattened bristles. The genus is restricted to the Mojave Desert of California, <i>Nevada</i>, Utah, and Arizona where these states are contiguous.</p>
|tables=
|references={{Treatment/Reference
|id=porter1943a
|text=Porter, Ced. L. 1943. The genus Amphipappus Torr. and Gray. Amer. J. Bot. 30: 481–483.
}}
}}<!--

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-->{{#Taxon:
name=Amphipappus
|author=Guy L. Nesom
|authority=Torrey & A. Gray
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Barbara Alongi
|distribution=sw United States.
|reference=porter1943a
|publication title=Boston J. Nat. Hist.
|publication year=1845
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_405.xml
|tribe=Asteraceae tribe Astereae
|genus=Amphipappus
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae tribe Astereae]]