View source for Symphyotrichum boreale

{{Treatment/ID
|accepted_name=Symphyotrichum boreale
|accepted_authority=(Torrey & A. Gray) Á. Löve & D. Löve
|publications={{Treatment/Publication
|title=Taxon
|place=31: 358. 1982
|year=1982
}}
|common_names=Rush or slender white or northern bog aster;aster boréal
|basionyms={{Treatment/ID/Synonym
|name=Aster laxifolius var. borealis
|authority=Torrey & A. Gray
}}
|synonyms={{Treatment/ID/Synonym
|name=Aster borealis
|authority=(Torrey & A. Gray) Provancher
}}{{Treatment/ID/Synonym
|name=Aster franklinianus
|authority=Rydberg
}}{{Treatment/ID/Synonym
|name=Aster junciformis
|authority=Rydberg
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Symphyotrichum;Symphyotrichum sect. Symphyotrichum;Symphyotrichum boreale
|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 boreale]]</div></div>
|volume=Volume 20
|mention_page=page 468, 477, 501, 514, 521, 52
|treatment_page=page 522
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>(5.5–)13–85 cm, colonial; slender (0.6–2.8 mm diam.), long-rhizomatous (rhizomes of season shallow- or deep-seated, not producing rosettes near parent stems). <b>Stems</b> 1–3+, erect (straight, slender, often reddish to slightly glaucous proximally), glabrous. <b>Leaves</b> stiff, margins entire to sparsely subserrulate, revolute, scabrellous, apices mucronulate, sometimes with callous point, faces glabrous, abaxial midveins sometimes sparsely strigillose; basal withering by flowering, subpetiolate to petiolate, petioles winged, base dilated, sheathing, eciliate, blades linear-oblanceolate to ovate or suborbiculate, 20–150 × 5–60 mm, bases attenuate, margins shallowly serrate or entire, apices obtuse to rounded; proximal cauline withering by flowering, sessile or subpetiolate, petioles widely winged, bases strongly clasping, blades linear-lanceolate to linear, 15–90 × 2–12 mm, bases attenuate to cuneate or subauriculate, ± clasping, apices obtuse to acute; distal sessile, blades linear-lanceolate (sometimes lanceolate) to linear, (40–)60–150 × 2–6(–8) mm, ± reduced distally, bases subauriculate, subclasping, margins entire or sometimes remotely serrulate, apices acute. <b>Heads</b> borne singly or in open, often lax, racemiform or paniculiform arrays, branches ascending, sparsely leafy. <b>Peduncles</b> 0.5–5 cm, glabrous, bracts 1–3, remote, linear-lanceolate to linear, reduced distally, not grading into phyllaries (sometimes subtending heads). <b>Involucres</b> cylindro-campanulate, (4–)5–8 mm. <b>Phyllaries</b> in 4–5 series, usually appressed, rarely outer recurved, lanceolate or oblong-lanceolate (outer) to linear (innermost) ± unequal to sometimes subequal, bases indurate 1/3–1/2 (sometimes not indurate), margins scarious, erose, hyaline or tinged with reddish purple, sparsely ciliolate, green zones lanceolate to linear-lanceolate, apices acute to acuminate, mucronate to apiculate, often purple or reddish purple (particularly inner), faces glabrous. <b>Ray</b> florets (15–)25–35(–41); corollas white to often pale rose, pale purple or lavender, laminae (7–)10–15(–20) × 1.1–1.5 mm. <b>Disc</b> florets (15–)25–30(–40); corollas cream or pale yellow becoming pink or brown purple, 3.7–6.6 mm, tubes shorter than funnelform throats, lobes triangular, 0.5–1 mm. <b>Cypselae</b> yellowish tan or purple to brownish with purple streaks or grayish tan (nerves stramineous), obovoid, ± compressed, 0.6–2 mm, 3–5-nerved, faces sparsely strigillose; pappi white, 2.7–6.4 mm. <b>2n</b> = 16, 32, 48, 64.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Oct.
|habitat=Mostly calcareous areas, fens, marshes, bogs, open cedar-tamarack-spruce swamps, stream and pond margins, wet meadows, swales
|elevation=0–1500+ m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Colo.;Idaho;Ill.;Ind.;Iowa;Mass.;Mich.;Minn.;Mont.;Nebr.;N.H.;N.J.;N.Y.;N.Dak.;Ohio;Pa.;S.Dak.;Vt.;Wash.;W.Va.;Wis.;Wyo.
|discussion=<p>Some of the western populations originally determined as Symphyotrichum boreale in western Wyoming and adjacent Montana are referable to S. welshii. Those of eastern Wyoming, Colorado, and the Black Hills are S. boreale. There is a gap between the ranges of the two species in Wyoming where neither occurs. Symphyotrichum ×longulum (E. Sheldon) G. L. Nesom (syn. Aster longulus E. Sheldon), reported from Minnesota, is the hybrid between S. boreale and S. puniceum var. puniceum.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Symphyotrichum boreale
|author=
|authority=(Torrey & A. Gray) Á. Löve & D. Löve
|rank=species
|parent rank=section
|synonyms=Aster borealis;Aster franklinianus;Aster junciformis
|basionyms=Aster laxifolius var. borealis
|family=Asteraceae
|phenology=Flowering Aug–Oct.
|habitat=Mostly calcareous areas, fens, marshes, bogs, open cedar-tamarack-spruce swamps, stream and pond margins, wet meadows, swales
|elevation=0–1500+ m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Colo.;Idaho;Ill.;Ind.;Iowa;Mass.;Mich.;Minn.;Mont.;Nebr.;N.H.;N.J.;N.Y.;N.Dak.;Ohio;Pa.;S.Dak.;Vt.;Wash.;W.Va.;Wis.;Wyo.
|reference=None
|publication title=Taxon
|publication year=1982
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V20_1162.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Symphyotrichum
|section=Symphyotrichum sect. Symphyotrichum
|species=Symphyotrichum boreale
}}<!--

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