Symphyotrichum boreale (Torrey & A. Gray) Á. Löve & D. Löve (Q2417)
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Symphyotrichum boreale is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
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Symphyotrichum boreale (Torrey & A. Gray) Á. Löve & D. Löve
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Symphyotrichum boreale is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
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Statements
taxon/id/Symphyotrichum boreale (Torrey & A. Gray) Á. Löve & D. Löve
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Symphyotrichum boreale (Torrey & A. Gray) Á. Löve & D. Löve
Symphyotrichum boreale
(Torrey & A. Gray) Á. Löve & D. Löve
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
accepted
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CA-BC
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Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
CA-AB
1 reference
Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
CA-SK
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Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
CA-MB
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Manitoba Checklist, 2002
CA-ON
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Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
CA-QC
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Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
CA-NB
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Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.
CA-PE
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Catling, P.M., D.S. Erskine & R.B. MacLaren. 1985. The Plants of Prince Edward Island with new records, nomenclatural changes, and corrections and deletions. Agriculture Canada, Research Branch, Ottawa. Publication 1798. 272 pp.
CA-NS
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Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
Newfoundland, CA
present
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Herbier Marie-Victorin (MT). Université de Montréal, Montréal, QC. Specimen. http://www.biodiversite.umontreal.ca/herbier-marie-victorin?lang=en
CA-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
CA-NT
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Porsild, A.E. & W.J. Cody. 1980. Vascular Plants of the Continental Northwest Territories, Canada. National Museum of Natural Sciences, Ottawa, Ont. 667 pp.
CA-NU
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Kotanen, P.M. 2005. List of the Vascular Plants of Akimiki Island, Nunavut Territory. www.utm.utoronto.ca/~w3pkota/akimiskiflora/akiplants.doc (consulted 2010-08) http://www.utm.utoronto.ca/~w3pkota/akimiskiflora/akiplants.doc
CA-AB
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CA-BC
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CA-MB
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CA-NB
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CA-NL
Nfld. and Labr. (Nfld.)
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CA-NT
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CA-NS
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CA-NU
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CA-ON
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CA-PE
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CA-QC
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CA-SK
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CA-YT
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US-AK
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US-CO
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US-ID
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US-IL
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US-IN
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US-IA
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US-MA
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US-MI
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US-MN
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US-MT
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US-NE
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US-NH
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US-NJ
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US-NY
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US-ND
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US-OH
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US-PA
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US-SD
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US-VT
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US-WA
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US-WV
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US-WI
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US-WY
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Stems 1–3+, erect (straight, slender, often reddish to slightly glaucous proximally), glabrous.
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Leaves stiff, margins entire to sparsely subserrulate, revolute, scabrellous, apices mucronulate, sometimes with callous point, faces glabrous, abaxial midveins sometimes sparsely strigillose;
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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;
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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;
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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.
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Heads borne singly or in open, often lax, racemiform or paniculiform arrays, branches ascending, sparsely leafy.
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Peduncles 0.5–5 cm, glabrous, bracts 1–3, remote, linear-lanceolate to linear, reduced distally, not grading into phyllaries (sometimes subtending heads).
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Involucres cylindro-campanulate, (4–) 5–8 mm.
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Phyllaries 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.
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Ray-florets (15–) 25–35 (–41);
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corollas white to often pale rose, pale-purple or lavender, laminae (7–) 10–15 (–20) × 1.1–1.5 mm.
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Disc-florets (15–) 25–30 (–40);
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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.
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Cypselae 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;
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pappi white, 2.7–6.4 mm. 2n = 16, 32, 48, 64.
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linear-oblanceolate
ovate or suborbiculate
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linear-oblanceolate
ovate or suborbiculate
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linear-oblanceolate
ovate or suborbiculate
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linear-oblanceolate
ovate or suborbiculate
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linear-oblanceolate
ovate or suborbiculate
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attenuate
cuneate or subauriculate
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attenuate
cuneate or subauriculate
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attenuate
cuneate or subauriculate
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reduced
more or less; distally
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tinged with reddish purple
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pale-yellow becoming pink or brown purple
becoming; becoming
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in open , often lax , racemiform or paniculiform arrays
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