View source for Swallenia alexandrae

{{Treatment/ID
|accepted_name=Swallenia alexandrae
|accepted_authority=(Swallen) Soderstr. & H.E Decker
|publications=
|common_names=Eureka valley dunegrass
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Ectosperma alexandrae
|authority=
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Chloridoideae;Poaceae tribe Cynodonteae;Swallenia;Swallenia alexandrae
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Chloridoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Cynodonteae]]</div><div class="higher-taxon"><small>genus</small>[[Swallenia]]</div><div class="higher-taxon"><small>species</small>[[Swallenia alexandrae]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 24
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="culm atypical some measurement;culm some measurement;culm fragility;culm orientation"><b>Culms </b>10-40 (60) cm, stiff, erect;</span> <span class="statement" id="st-d0_s1" data-properties="node pubescence">nodes villous.</span> <span class="statement" id="st-d0_s2" data-properties="sheath pubescence"><b>Sheaths </b>villous on the upper margins;</span> <span class="statement" id="st-d0_s3" data-properties="blade length;blade width">blades 5-14 cm long, 3-8 mm wide.</span> <span class="statement" id="st-d0_s4" data-properties="panicle some measurement"><b>Panicles </b>4-10 cm;</span> <span class="statement" id="st-d0_s5" data-properties="branch some measurement;spikelet quantity">branches to 35 mm, with 1-3 spikelets.</span> <span class="statement" id="st-d0_s6" data-properties="spikelet some measurement;spikelet duration"><b>Spikelets </b>10-15 mm, persistent.</span> <span class="statement" id="st-d0_s7" data-properties="glume some measurement"><b>Glumes </b>9-14 mm;</span> <span class="statement" id="st-d0_s8" data-properties="lemma some measurement">lemmas 7-9 mm.</span> <span class="statement" id="st-d0_s9" data-properties=""><b>Caryopses </b>about 4 mm long, about 2 mm in diameter.</span> <span class="statement" id="st-d0_s10" data-properties="caryopsis length;caryopsis diameter;2n chromosome quantity">2n = 20.</span><!--

-->{{Treatment/Body
|distribution=Calif.
|discussion=<p>Swallenia alexandrae grows on sand dunes in Inyo County, California. It is only known from four sites, all between 900-1200 m, in the Eureka Valley of northern Inyo County. At these sites, it forms dense colonies 1-2 m across. It is state-listed as rare and federally-listed as endangered because of off-road vehicle activity.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Swallenia alexandrae
|authority=(Swallen) Soderstr. & H.E Decker
|rank=species
|parent rank=genus
|synonyms=Ectosperma alexandrae
|basionyms=
|family=Poaceae
|illustrator=Linda A. Vorobik;Linda Bea Miller
|illustration copyright=Utah State University
|distribution=Calif.
|reference=None
|publication title=
|publication year=
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25_33.xml
|subfamily=Poaceae subfam. Chloridoideae
|tribe=Poaceae tribe Cynodonteae
|genus=Swallenia
|species=Swallenia alexandrae
|2n chromosome quantity=20
|blade length=5cm;14cm
|blade width=3mm;8mm
|branch some measurement=0mm;35mm
|caryopsis diameter=2
|caryopsis length=4
|culm atypical some measurement=60
|culm fragility=stiff
|culm orientation=erect
|culm some measurement=10cm;40cm
|glume some measurement=9mm;14mm
|lemma some measurement=7mm;9mm
|node pubescence=villous
|panicle some measurement=4cm;10cm
|sheath pubescence=villous
|spikelet duration=persistent
|spikelet quantity=1;3
|spikelet some measurement=10mm;15mm
}}<!--

-->[[Category:Treatment]][[Category:Swallenia]]