Symphyotrichum campestre (Nuttall) G. L. Nesom (Q2506)

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Symphyotrichum campestre is a taxon with the rank species within the subgenus Symphyotrichum subg. Virgulus
Language Label Description Also known as
English
Symphyotrichum campestre (Nuttall) G. L. Nesom
Symphyotrichum campestre is a taxon with the rank species within the subgenus Symphyotrichum subg. Virgulus

    Statements

    taxon/id/Symphyotrichum campestre (Nuttall) G.L. Nesom
    0 references
    Symphyotrichum campestre (Nuttall) G.L. Nesom
    Symphyotrichum campestre
    (Nuttall) 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 campestre
    western meadow aster (English)
    meadow aster (English)
    aster des champs (French)
    Western meadow aster (English)
    Flowering Aug–Oct.
    disturbed
    sandy soils
    streams
    dry grass meadows
    open pine-douglas fir forests
    plains to montane zones
    1500–2500 m
    Stems 1–5+, ascending to erect (light to dark-brown), proximally glabrous, distally strigose, stipitate-glandular.
    Leaves (light green) firm, margins entire, scabrous;
    basal sometimes persistent, sessile, blades (1–3-nerved) linear-oblanceolate, 10–30 × 4–10 mm, bases attenuate, apices obtuse, mucronate, faces glabrate to sparsely scabrous;
    proximal cauline withering by flowering, sessile, blades (3-nerved) narrowly oblanceolate, 20–80 × 2–8 mm, bases cuneate, apices obtuse to acute, mucronulate or white-spinulose, faces glabrous or moderately short-strigose, stipitate-glandular;
    distal sessile, blades linear-oblanceolate to lanceolate or oblong (distally), 20–50 × 2–5 mm, ± reduced distally, bases ± clasping to cuneate, apices acute, mucronulate, faces glabrous or moderately short-strigose, stipitate-glandular.
    Heads 1–10 (–30), borne singly or in paniculiform arrays, branches ascending.
    Peduncles sparsely to moderately short-strigose, moderately stipitate-glandular, bracts ± ascending, linear to narrowly-lanceolate.
    Involucres campanulate to cylindro-campanulate, 5.5–8 mm.
    Phyllaries in 3–4 series, linear to lanceolate, subequal to unequal, bases ± indurate, margins scarious, green zones covering distal portion, apices acute to acuminate, outer ± foliaceous, spreading to reflexed, faces glabrate, sparsely to densely stipitate-glandular.
    Ray-florets 15–31;
    corollas violet, laminae (5–) 6–15 × 1–2 mm.
    Disc-florets 25–40;
    corollas yellow, 4.5–6 mm, lobes triangular, 0.4–0.8 mm.
    Cypselae light-brown, sometimes translucent reddish-brown between ribs, narrowly obovoid, ± compressed, 2–2.5 mm, 3–4-nerved (faint), moderately strigose on ribs;
    pappi tawny, 3.8–6 mm. 2n = 10.