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
Language Label Description Also known as
English
Symphyotrichum boreale (Torrey & A. Gray) Á. Löve & D. Löve
Symphyotrichum boreale is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum

    Statements

    taxon/id/Symphyotrichum boreale (Torrey & A. Gray) Á. Löve & D. Löve
    0 references
    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
    Symphyotrichum boreale
    (Torrey & A. Gray) Á. Löve & D. Löve
    aster boréal (French)
    rush aster (English)
    rush-leaved aster (English)
    boreal aster (English)
    northern bog aster (English)
    slender white aster (English)
    boreal American aster (English)
    Rush or slender white or northern bog aster (English)
    aster boréal (English)
    1 reference
    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.
    1 reference
    Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
    1 reference
    Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
    1 reference
    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.
    1 reference
    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.
    1 reference
    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.
    1 reference
    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.
    1 reference
    Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
    Newfoundland, CA
    1 reference
    Herbier Marie-Victorin (MT). Université de Montréal, Montréal, QC. Specimen. http://www.biodiversite.umontreal.ca/herbier-marie-victorin?lang=en
    1 reference
    Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
    1 reference
    Porsild, A.E. & W.J. Cody. 1980. Vascular Plants of the Continental Northwest Territories, Canada. National Museum of Natural Sciences, Ottawa, Ont. 667 pp.
    1 reference
    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
    Flowering Aug–Oct.
    marshes
    open cedar-tamarack-spruce swamps
    stream
    pond margins
    wet meadows
    swales
    calcareous
    0–1500+ m
    Stems 1–3+, erect (straight, slender, often reddish to slightly glaucous proximally), glabrous.
    Leaves 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.
    Heads borne singly or in open, often lax, racemiform or paniculiform arrays, branches ascending, sparsely leafy.
    Peduncles 0.5–5 cm, glabrous, bracts 1–3, remote, linear-lanceolate to linear, reduced distally, not grading into phyllaries (sometimes subtending heads).
    Involucres cylindro-campanulate, (4–) 5–8 mm.
    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.
    Ray-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.
    Disc-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.
    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;
    pappi white, 2.7–6.4 mm. 2n = 16, 32, 48, 64.