Symphyotrichum subg. Virgulus (Rafinesque) G. L. Nesom (Q2501)

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Symphyotrichum subg. Virgulus is a taxon with the rank subgenus within the genus Symphyotrichum
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English
Symphyotrichum subg. Virgulus (Rafinesque) G. L. Nesom
Symphyotrichum subg. Virgulus is a taxon with the rank subgenus within the genus Symphyotrichum

    Statements

    taxon/id/Symphyotrichum subg. Virgulus (Rafinesque) G.L. Nesom
    0 references
    Symphyotrichum subg. Virgulus (Rafinesque) G.L. Nesom
    Symphyotrichum subg. Virgulus
    (Rafinesque) 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 subg. Virgulus
    North America
    Mexico
    rhizomatous or with cormoid caudices.
    Stems brittle at maturity, usually ± densely hairy, sometimes glabrous, sometimes stipitate-glandular at least distally.
    Leaves: basal withering by flowering, usually sessile, sometimes subpetiolate, blades usually 3-nerved, spatulate or obovate to oblanceolate, sometimes linear-oblanceolate, margins entire;
    cauline sessile, blades ovate or oblong to lanceolate, oblanceolate, or linear, bases rounded or auriculate, clasping or subclasping (leaves sometimes reduced distally).
    Phyllaries unequal or subequal, sometimes ± foliaceous, bases usually indurate, green zones usually diamond-shaped, sometimes lanceolate or apices foliaceous (faces usually hairy, sometimes glabrous, sometimes stipitate-glandular).
    Ray-florets 7–36 (–100) in 1 series;
    laminae (2–) 4.5–24 (–25) × 0.5–2 mm.
    Disc corollas usually weakly ampliate, throats narrowly funnelform, lobes erect.