Symphyotrichum laurentianum (Fernald) G. L. Nesom (Q2484)

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

    Statements

    taxon/id/Symphyotrichum laurentianum (Fernald) G.L. Nesom
    0 references
    Symphyotrichum laurentianum (Fernald) G.L. Nesom
    Symphyotrichum laurentianum
    (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 laurentianum
    aster du golfe Saint-Laurent (French)
    aster du Saint-Laurent (French)
    Gulf of St. Lawrence aster (English)
    St. Lawrence aster (English)
    Gulf of St. Lawrence aster (English)
    aster du golfe du Saint-Laurent (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
    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
    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.
    intertidal salt marshes
    moist dune slacks
    brackish
    Stems 1, decumbent to erect (straight), glabrous.
    Leaves ± fleshy, margins entire, eciliate, apices obtuse, faces glabrous;
    basal deciduous at bolting, petiolate, blades oblanceolate 44–50 × 5–7 mm [cult.], bases attenuate;
    proximal cauline and some distal withering by flowering;
    cauline sessile, blades linear-lanceolate to spatulate, 15–55 × 1–4 mm, reduced distally, bases cuneate;
    distal sessile, blades linear-lanceolate to spatulate.
    Peduncles glabrous, bracts linear.
    Involucres campanulate, 5–8+mm.
    Phyllaries in 3–4 series, lanceolate, subequal, bases scarious, margins eciliate, green zones foliaceous (outer), apices obtuse, faces glabrous.
    Pistillate florets 14–47+ in 2–3+ series;
    laminae 0 (corolla-tubes 2–2.4 mm, shorter than style-branches).
    Disc-florets 5–8+;
    corollas yellow, 3.1–3.9 mm, lobes deltate to triangular, 0.2–0.3 mm.
    Cypselae purple, obovoid, ± compressed, 2.8–2.9 mm, 2–4-nerved, faces strigillose;
    pappi white to yellowish white, 4.8–5.2 mm. 2n = 14.