View source for Washingtonia

{{Treatment/ID
|accepted_name=Washingtonia
|accepted_authority=H. Wendland
|publications={{Treatment/Publication
|title=Bot. Zeitung (Berlin)
|place=37: 68, 148. 1879
|year=1879
}}
|common_names=Fan palm;palmier evantail de Californie
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Neowashingtonia
|authority=Sudworth
}}
|hierarchy=Arecaceae;Arecaceae subfam. Coryphoideae;Arecaceae tribe Corypheae;Arecaceae (tribe Corypheae) subtribe Livistoninae;Washingtonia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Arecaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Arecaceae subfam. Coryphoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Arecaceae tribe Corypheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Arecaceae (tribe Corypheae) subtribe Livistoninae]]</div><div class="higher-taxon"><small>genus</small>[[Washingtonia]]</div></div>
|etymology=fFor George Washington, 1732–1799, American patriot and first president of the United States
|volume=Volume 22
|mention_page=
|treatment_page=page 105
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>tree palms. <b>Stems</b> solitary, erect, tall, massive in one species (more than 10020 cm diam.)(100–150 cm diam.), partly or completely covered with old leaf bases and marcescent dry leaves forming conspicuous skirt around trunk. <b>Leaves</b>: sheath fibers soft; petiole split at base, conspicuously armed with teeth along margins, sometimes unarmed in tall plants; abaxial hastula absent; adaxial hastula irregularly shaped, margin becoming tattered, fibrous; costa prominent; blade costapalmate; plication induplicate; segments lanceolate, basally connate, bearing fibers between segments; apices 2-cleft or irregularly tattered into fibers. <b>Inflorescences</b> axillary within crown of leaves, paniculate, arching well beyond leaves, with 2 orders of branching; prophyll leathery; rachis bracts very conspicuous, tubular at base, distally flattened and leathery, long; rachillae glabrous. <b>Flowers</b> bisexual, borne singly along rachillae, short- pedicellate; perianth 2-seriate; calyx cupulate, 3-lobed, apices and margins irregular; petals 3, long, chaffy, basally connate into tube; stamens 6, adnate briefly to petals; pistils 3, distinct basally, glabrous; styles connate, slender, long; stigma inconspicuous. <b>Fruits</b> drupes, blackish, ellipsoid; exocarp smooth; mesocarp thin, fleshy; endocarp thin. <b>Seeds</b> ellipsoid; endosperm homogeneous; embryo basal; eophyll undivided, lanceolate. n = 18.</span><!--

-->{{Treatment/Body
|distribution=w North America;nw Mexico.
|discussion=<p>The two species are easy to distinguish when cultivated side by side, but they are sometimes difficult to identify from herbarium specimens. Analysis of flavonoids (S. Zona and R. Scogin 1988) can reliably distinguish the two species.</p><!--
--><p>Species 2 (2 in the flora).</p>
|tables=
|references={{Treatment/Reference
|id=bailey1936a
|text=Bailey, L. H. 1936. Washingtonia. Gentes Herb. 4: 51--82.
}}{{Treatment/Reference
|id=zona1988a
|text=Zona, S. and R. Scogin. 1988. Flavonoid aglycones and C-glycosides of the palm genus Washingtonia (Arecaceae: Coryphoideae). SouthW. Naturalist. 33: 498.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Trunk greater than 100 cm diam.
|[[Washingtonia filifera|Washingtonia filifera]]
|-id=key-0-1
|1
|Trunk less than 80 cm diam.
|[[Washingtonia robusta|Washingtonia robusta]]
|}
</div></div><!--

-->{{#Taxon:
name=Washingtonia
|author=
|authority=H. Wendland
|rank=genus
|parent rank=subtribe
|synonyms=Neowashingtonia
|basionyms=
|family=Arecaceae
|distribution=w North America;nw Mexico.
|reference=bailey1936a;zona1988a
|publication title=Bot. Zeitung (Berlin)
|publication year=1879
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V22/V22_242.xml
|subfamily=Arecaceae subfam. Coryphoideae
|tribe=Arecaceae tribe Corypheae
|subtribe=Arecaceae (tribe Corypheae) subtribe Livistoninae
|genus=Washingtonia
}}<!--

-->[[Category:Treatment]][[Category:Arecaceae (tribe Corypheae) subtribe Livistoninae]]