Symphyotrichum lanceolatum (Willdenow) G. L. Nesom (Q2457)

From Canadian Flora Commons
Revision as of 12:49, 24 June 2022 by WikibaseAdmin (talk | contribs) (‎Changed an Item)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Symphyotrichum lanceolatum is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
Language Label Description Also known as
English
Symphyotrichum lanceolatum (Willdenow) G. L. Nesom
Symphyotrichum lanceolatum is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum

    Statements

    taxon/id/Symphyotrichum lanceolatum (Willdenow) G.L. Nesom
    0 references
    Symphyotrichum lanceolatum (Willdenow) G.L. Nesom
    Symphyotrichum lanceolatum
    (Willdenow) 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 lanceolatum
    white panicled aster (English)
    lance-leaved aster (English)
    panicled aster (English)
    tall white aster (English)
    aster lancéolé (French)
    Lance-leaved or panicled or white panicled aster (English)
    aster lancéolé (English)
    in Europe
    Stems 1, erect (straight, stout), glabrous or hairy.
    Leaves thin, scabrous, apices mucronate, abaxial faces glabrous (vein areoles indistinct, elongate), adaxial glabrous or sparsely scabrous (var. hesperium);
    basal withering by flowering, petiolate to subpetiolate (petioles winged, ciliate, bases dilated, sheathing), blades elliptic-oblanceolate or obovate to suborbiculate, 10–80 × 5–20 mm, cuneate to attenuate, margins crenate-serrate, apices acute to obtuse or rounded;
    proximal cauline withering by flowering, sessile or subsessile, blades lanceovate or oblanceolate to linear-lanceolate, (40–) 50–150 × (3–) 10–20 (–35) mm, progressively reduced distally, bases cuneate, ± decurrent, margins serrate, apices acute to acuminate;
    distal sessile, blades oblanceolate to linear, 30–100 (–140) mm, only slightly reduced distally, bases cuneate, margins entire.
    Heads in ample or diffuse to narrow, elongate, leafy, paniculiform arrays, branches ± ascending, rarely secund, branch leaves often longer than pedicels.
    Peduncles 0.5–5 cm, ± pilose, bracts 1–3 (–5), linear-oblanceolate to lanceolate, foliaceous, ciliate.
    Involucres campanulate to cylindric, 3–8 mm.
    Phyllaries in (3–) 4–6 series, appressed or slightly spreading, linear-lanceolate to linear (innermost), sometimes slightly dilated distally, ± strongly unequal to subequal (var. hesperium), bases indurate 1/4–1/2, margins scarious, erose, hyaline, sparsely ciliolate, green zones lanceolate to linear-lanceolate, outer sometimes foliaceous (particularly var. hesperium), apices acute to acuminate (outer) or acuminate to caudate (inner), mostly mucronulate, abaxial faces glabrous, adaxial sparsely strigillose.
    Ray-florets 16–50;
    corollas white to pinkish or pale blue-violet, laminae 3–10 (–14) × 0.5–1.3 mm.
    Disc-florets (13–) 20–40 (–52);
    corollas yellow becoming purple, 2.8–5.8 mm, tubes shorter than funnelform throats, lobes sometimes ± spreading, triangular, 0.4–1.2 mm.
    Cypselae gray or tan, obovoid, ± compressed, 1.5–2 mm, 4–5-nerved, faces sparsely strigillose;
    pappi white to sordid or tawny, 5.5–6 mm.