Symphyotrichum anticostense (Fernald) G. L. Nesom (Q2416)

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Symphyotrichum anticostense is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
Language Label Description Also known as
English
Symphyotrichum anticostense (Fernald) G. L. Nesom
Symphyotrichum anticostense is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum

    Statements

    taxon/id/Symphyotrichum anticostense (Fernald) G.L. Nesom
    0 references
    Symphyotrichum anticostense (Fernald) G.L. Nesom
    Symphyotrichum anticostense
    (Fernald) G.L. Nesom
    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 anticostense
    aster d'Anticosti (French)
    Anticosti aster (English)
    Anticosti Island aster (English)
    Anticosti aster (English)
    aster d’Anticosti (English)
    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
    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.
    Flowering Aug–Sep.
    calcareous
    gravelly shores
    rivers
    limestone pavements
    Stems 1, erect (straight, often reddish), glabrous.
    Leaves coriaceous, margins remotely serrulate or entire, slightly revolute, scabrous, apices mucronulate, faces glabrous;
    basal withering by flowering, long-petiolate (petioles narrowly winged, bases sheathing), blades lanceolate to oblanceolate, ca. 55+ × 3+ mm, bases slightly attenuate, apices acute;
    proximal cauline mostly withering by flowering, petiolate (petioles narrowly winged, sheathing), blades lanceolate or oblanceolate to linear-lanceolate or oblanceolate, arcuate, 90–160 × 5–18 mm, bases cuneate to slightly attenuate, margins entire or serrulate, apices acute;
    distal sessile, blades linear to linear-lanceolate, 8–50 × 1.5–5 mm, progressively reduced distally, more strongly so in arrays, bases cuneate to rounded, sometimes slightly clasping, apices acute to acuminate.
    Heads in elongate, loosely racemiform arrays, branches ascending, heads single at ends of primary branches or long pedicels.
    Peduncles 0.8–5.7 cm, slender, sparsely ot moderately pilosulous, bracts 3–5, linear-lanceolate, often crowded proximal to and surpassing heads.
    Involucres campanulate, 6–10 mm.
    Phyllaries in 2–3 series, oblong-oblanceolate or spatulate (outer) or oblong-lanceolate to linear-lanceolate or linear (inner), ± unequal, bases indurate 1/3–3/4, margins hyaline, scarious, erose distally, sparsely ciliolate distally, green zones lanceolate, outer often foliaceous distally, apices acute to long-acuminate, ± spreading, faces glabrous.
    Ray-florets 25–44;
    corollas usually pale-purple or lilac, sometimes white, laminae 9.5–20 × 0.7–1.4 mm.
    Disc-florets 29–52;
    corollas yellow becoming reddish purple, 5–6 mm, tubes slightly shorter than funnelform throats, lobes lanceolate, 0.6–0.7 mm.
    Cypselae reddish tan, obovoid, compressed, 1.5–2.8 mm, 4–5-nerved, faces strigillose;
    pappi yellowish, 7–8 mm. 2n = 80.