View source for Symphyotrichum nahanniense

{{Treatment/ID
|accepted_name=Symphyotrichum nahanniense
|accepted_authority=(Cody) Semple in J. C. Semple et al.
|publications={{Treatment/Publication
|title=in J. C. Semple et al., Cult. Native Asters Ontario,
|place=134. 2002
|year=2002
}}
|common_names=Nahanni aster
|basionyms={{Treatment/ID/Basionym
|name=Aster nahanniensis
|authority=Cody
|publication_title=Naturaliste Canad.
|publication_place=101: 888. 1974
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Symphyotrichum;Symphyotrichum sect. Symphyotrichum;Symphyotrichum nahanniense
|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>[[Symphyotrichum]]</div><div class="higher-taxon"><small>subgenus</small>[[Symphyotrichum subg. Symphyotrichum]]</div><div class="higher-taxon"><small>section</small>[[Symphyotrichum sect. Symphyotrichum]]</div><div class="higher-taxon"><small>species</small>[[Symphyotrichum nahanniense]]</div></div>
|volume=Volume 20
|mention_page=page 468, 477, 501
|treatment_page=page 523
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 7–39 cm, cespitose; slender, woody, short-rhizomatous (rhizomes of season shallow- or deep-seated, not producing rosettes near parent stems). <b>Stems</b> 1, ascending to decumbent (slender, green to reddish brown), glabrate or sparsely short woolly-pilose in lines or zones, more densely so distally. <b>Leaves</b> (light green, abaxial sometimes becoming much darker) thin to firm, margins entire, scabrous, apices mucronulate, faces glabrous; basal persistent or withering by flowering, petiolate, blades oblanceolate to short-spatulate, 10–130 × 2–8 mm, bases cuneate to attenuate, margins rarely sparsely serrulate, apices obtuse, faces glabrous; proximal cauline persistent or withering by flowering, sessile, blades oblanceolate to linear lanceolate, 13–60 × 2–6 mm, bases ± clasping, apices acute; distal sessile, blades linear to linear-lanceolate, 10–36 × 1–4 mm, reduced distally, bases subauriculate, subclasping to ± clasping. <b>Heads</b> usually borne singly or in open, paniculiform arrays (sometimes terminating lateral branches arising from decumbent stems or from proximal stem branches), branches few. <b>Peduncles</b> 10–70 mm, sparsely to moderately short-strigose, bracts 0–10, lanceolate, often foliaceous, reduced distally. <b>Involucres</b> cylindro-campanulate, 4.7–7.4 mm. <b>Phyllaries</b> in 3–4 series, outer spatulate, inner lanceolate, ± unequal to subequal, bases indurate, margins reddish, papery, erose-ciliate, green zones lanceolate, apices acute, faces glabrous. <b>Ray</b> florets 15–41; corollas white to pale rose, often becoming rose-violet, laminae 5–13 × 0.7–1.8 mm. <b>Disc</b> florets 20–60; corollas yellow turning reddish with age, 3.7–6.6 mm, tubes shorter than funnelform throats, lobes erect to spreading, lanceolate, 0.4–0.8 mm. <b>Cypselae</b> tan (nerves stramineous), obovoid, compressed, 2–3 mm, 3–5-nerved, faces strigillose; pappi white, 4–6.5 mm. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Sep.
|habitat=Stream banks near hot mineral springs
|elevation=± 1000 m
|distribution=N.W.T.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Symphyotrichum nahanniense</i> is known only from the South Nahanni River (Mackenzie Mountains), Nahanni National Park.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Symphyotrichum nahanniense
|author=
|authority=(Cody) Semple in J. C. Semple et al.
|rank=species
|parent rank=section
|synonyms=
|basionyms=Aster nahanniensis
|family=Asteraceae
|phenology=Flowering Aug–Sep.
|habitat=Stream banks near hot mineral springs
|elevation=± 1000 m
|distribution=N.W.T.
|reference=None
|publication title=in J. C. Semple et al., Cult. Native Asters Ontario,
|publication year=2002
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_1163.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Symphyotrichum
|section=Symphyotrichum sect. Symphyotrichum
|species=Symphyotrichum nahanniense
}}<!--

-->[[Category:Treatment]][[Category:Symphyotrichum sect. Symphyotrichum]]