Symphyotrichum frondosum (Nuttall) G. L. Nesom (Q2483)

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

    Statements

    taxon/id/Symphyotrichum frondosum (Nuttall) G.L. Nesom
    0 references
    Symphyotrichum frondosum (Nuttall) G.L. Nesom
    Symphyotrichum frondosum
    (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 frondosum
    aster des terrains alcalins (French)
    aster feuillu (French)
    short-rayed alkali aster (English)
    short-rayed aster (English)
    alkali aster (English)
    Short-rayed alkali aster (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.
    Mexico (Baja California)
    Flowering Aug–Oct.
    saline soils
    summer-receding shores
    vernally moist
    alkaline bottoms
    marshes
    steppes
    Stems 1–6+, decumbent to erect (straight), glabrous.
    Leaves thin, margins entire (basal sometimes serrulate), sometimes ciliate or remotely scabrous, acute to ± obtuse, faces glabrous;
    basal withering by flowering, petiolate, blades oblanceolate to spatulate, 20–115 × 2–15 mm [cult.], bases attenuate;
    proximal cauline withering by flowering;
    cauline subpetiolate or sessile (distal), blades oblanceolate to linear, 10–80 × 1.5–10 mm, reduced distally, bases cuneate.
    Heads (radiate) in narrow, paniculiform to spiciform arrays, branches often in axils of nearly every leaf, ascending.
    Peduncles glabrous, bracts linear.
    Involucres narrowly campanulate, 5–9 mm.
    Phyllaries in 3–4 series, ± spreading, oblong-oblanceolate or lanceolate to obovate, subequal to ± unequal, linear-lanceolate or linear (innermost), bases scarious, margins narrowly scarious, hyaline, erose, ciliolate, green zones (outer) foliaceous, (inner) lanceolate, apices obtuse to rounded, inner acute, mucronulate, faces glabrous.
    Ray-florets 90–110 in 4–5+ series;
    corollas pink to pinkish white, laminae 1.5–2 × 0.1–0.2 mm (surpassing style-branches, barely surpassing disc corollas; tubes ± 3 mm).
    Disc-florets ± 37;
    corollas yellow, 4.4–5.2 mm, barely ampliate, tubes much longer than cylindric limbs, lobes lanceolate, ± 0.3 mm.
    Cypselae tan, obovoid, ± compressed, 2 mm, 2–3-nerved, faces strigillose;
    pappi white to yellowish, 6.3–7.5 mm. 2n = 14.