Solidago elongata Nuttall (Q2377)

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Solidago elongata is a taxon with the rank species within the series Solidago ser. Canadensae
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English
Solidago elongata Nuttall
Solidago elongata is a taxon with the rank species within the series Solidago ser. Canadensae

    Statements

    taxon/id/Solidago elongata Nuttall
    0 references
    Solidago elongata Nuttall
    Solidago elongata
    Nuttall
    Semple, J.C. 2013. Classification and illustrations of goldenrods. https://uwaterloo.ca/astereae-lab/research/goldenrods/classification-and-illustrations
    accepted
    verge d'or à inflorescence allongée (French)
    West Coast or Cascade Canada goldenrod (English)
    1 reference
    Klinkenberg, B. (ed.). 2010+. E-Flora BC: Electronic Atlas of the Plants of British Columbia. Lab. for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver, B.C. http://www.eflora.bc.ca http://www.eflora.bc.ca/
    Mexico (Baja California)
    Flowering Aug–Oct.
    gravelly soils
    coastal headlands
    thickets
    open woods
    meadows
    streams
    creeks
    Plants 25–150 cm;
    rhizomes short to long creeping, forming few to many-stemmed clones.
    Stems 1–20+, erect, proximally sparsely to moderately strigoso-villous, distally usually moderately to densely so.
    proximal cauline sessile, blades narrowly to broadly oblanceolate, 35–75 (–100) × (6–) 7.5–14 (–20) mm, proximal much smaller, tapering to bases, margins subentire or finely serrulate to coarsely, sharply serrate (teeth 0–9 per side), ciliate, 3-nerved, sometimes obscurely so, apices acute, abaxial faces glabrate to sparsely short-strigose, adaxial glabrous;
    mid to distal cauline sessile, blades oblanceolate, becoming lanceolate distally, 20–60 × 4–8 (–11) mm, largest near mid-stem, somewhat to much reduced distally, margins entire or finely serrulate, rarely serrate (teeth 1–8 per side), usually becoming entire to sparsely serrulate distally, ciliate, apices acute, faces glabrous or sparsely strigoso-villous, more so along abaxial nerves.
    Heads 12–500+, sometimes secund, in short to long, thyrsiform or narrowly secund-pyramidal paniculiform arrays, usually congested, club-shaped to rarely wand-shaped, (2.5–) 10–20 × (2–) 4–8 (–10) cm, branches usually ascending or sometimes arching spreading.
    Peduncles 2–7 mm, sparsely to moderately short strigoso-villous;
    bracteoles 1–3, linear, rarely minutely stipitate-glandular.
    Involucres narrowly campanulate, 2.5–3.5 (–4) mm.
    Phyllaries in 3–4 series, strongly unequal, margins sparsely long ciliate, acute, faces glabrous, rarely sparsely minutely stipitate-glandular;
    Ray-florets (8–) 11–15 (–17);
    laminae 1–2.5 × 0.1–0.4 (–0.7) mm.
    Disc-florets (3–) 5–11 (–16);
    corollas 2.6–3.7 (–4) mm, lobes 0.5–1.2 mm.
    Cypselae (narrowly obconic) 1–1.5 mm, sparsely to moderately strigose;
    pappi 2.5–3.3 mm. 2n = 18, 36.