Symphyotrichum ericoides (Linnaeus) G. L. Nesom (Q2508)

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

    Statements

    taxon/id/Symphyotrichum ericoides (Linnaeus) G.L. Nesom
    0 references
    Symphyotrichum ericoides (Linnaeus) G.L. Nesom
    Symphyotrichum ericoides
    (Linnaeus) 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 ericoides
    white heath aster (English)
    heath aster (English)
    aster éricoïde (French)
    White heath aster (English)
    aster éricoïde (English)
    n Mexico
    branched rhizomatous, or with ± cormoid, branched, woody caudices.
    Stems 1–3+, ascending to erect (grayish brown to brown), sparsely to densely hispido-strigose, sometimes glabrescent proximally.
    Leaves usually all except rameal withered by flowering, (light grayish green) firm apices ± white-spine-tipped (often with clusters of smaller leaves in axils);
    basal sessile, blades (3-nerved) oblanceolate to oblong or spatulate, 10–50 × 10–25 mm, bases attenuate, margins usually entire, rarely remotely serrate, scabrous, apices rounded to obtuse, faces usually sparsely hairy, often glabrous;
    proximal cauline sessile, blades (1-nerved or 3-nerved) linear to lanceolate or oblong, 10–40 (–60) × 1.5–4 (–7) mm, reduced distally, bases cuneate, coarsely ciliate, margins entire, coarsely ciliate, apices acute or obtuse, faces moderately to densely strigose or hirsute;
    distal sessile, blades oblong-ovate, 10–40 × 1.5–3.5 mm, abruptly reduced distally, bases cuneate, margins entire, apices acute, faces moderately to densely strigose.
    Heads (1–200+) in paniculiform arrays, branches fastigiate or arrays often pyramidal, racemiform, secund, crowded.
    Peduncles 0.5–1 (–2) cm or subsessile, densely hairy, bracts dense, linear to narrowly lanceolate, usually reflexed, sometime appressed to ascending, 1.5–5 (–6) mm, densely hairy, grading into phyllaries.
    Involucres cylindric to campanulate, 2.5–4.5 (–5) mm.
    Phyllaries in 3–4 series, oblanceolate to ± spatulate, unequal, firm, bases (whitish to tan) ± indurate in proximal 1/2–2/3, margins hyaline, scabrous proximally, green zones diamond-shaped, in distal 1/2, apices spine-tipped, (outer) spreading to reflexed or squarrose, faces (outer) sparsely to densely hispid, scabroso-hirsute adaxially, (inner) glabrous.
    Ray-florets (8–) 10–18 (–20);
    corollas usually white, rarely pink or bluish, laminae 6–12 (–20) × 0.7–1.2 mm.
    Disc-florets 6–12 (–20);
    corollas yellow becoming brown, 2.5–4 mm, throats narrowly funnelform, lobes triangular, 0.5–0.6 mm, glabrous.
    Cypselae deep purple turning brown, obovoid to oblong-obovoid, ± falcate, not compressed, 1.2–2 × 0.4–0.6 mm, 7–9-nerved (faint), faces sericeous or densely strigillose;
    pappi whitish, 3–4 mm.