Symphyotrichum campestre (Nuttall) G. L. Nesom (Q2506)
Symphyotrichum campestre is a taxon with the rank species within the subgenus Symphyotrichum subg. Virgulus
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Symphyotrichum campestre (Nuttall) G. L. Nesom
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Symphyotrichum campestre is a taxon with the rank species within the subgenus Symphyotrichum subg. Virgulus
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Statements
taxon/id/Symphyotrichum campestre (Nuttall) G.L. Nesom
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Symphyotrichum campestre (Nuttall) G.L. Nesom
Symphyotrichum campestre
(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
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1500–2500 m
1,500 meter
2,500 meter
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CA-AB
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CA-BC
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US-CA
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US-CO
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US-ID
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US-MT
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US-NV
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US-OR
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US-WA
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US-WY
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Stems 1–5+, ascending to erect (light to dark-brown), proximally glabrous, distally strigose, stipitate-glandular.
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Leaves (light green) firm, margins entire, scabrous;
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basal sometimes persistent, sessile, blades (1–3-nerved) linear-oblanceolate, 10–30 × 4–10 mm, bases attenuate, apices obtuse, mucronate, faces glabrate to sparsely scabrous;
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proximal cauline withering by flowering, sessile, blades (3-nerved) narrowly oblanceolate, 20–80 × 2–8 mm, bases cuneate, apices obtuse to acute, mucronulate or white-spinulose, faces glabrous or moderately short-strigose, stipitate-glandular;
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distal sessile, blades linear-oblanceolate to lanceolate or oblong (distally), 20–50 × 2–5 mm, ± reduced distally, bases ± clasping to cuneate, apices acute, mucronulate, faces glabrous or moderately short-strigose, stipitate-glandular.
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Heads 1–10 (–30), borne singly or in paniculiform arrays, branches ascending.
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Peduncles sparsely to moderately short-strigose, moderately stipitate-glandular, bracts ± ascending, linear to narrowly-lanceolate.
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Involucres campanulate to cylindro-campanulate, 5.5–8 mm.
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Phyllaries in 3–4 series, linear to lanceolate, subequal to unequal, bases ± indurate, margins scarious, green zones covering distal portion, apices acute to acuminate, outer ± foliaceous, spreading to reflexed, faces glabrate, sparsely to densely stipitate-glandular.
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Ray-florets 15–31;
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corollas violet, laminae (5–) 6–15 × 1–2 mm.
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Disc-florets 25–40;
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corollas yellow, 4.5–6 mm, lobes triangular, 0.4–0.8 mm.
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Cypselae light-brown, sometimes translucent reddish-brown between ribs, narrowly obovoid, ± compressed, 2–2.5 mm, 3–4-nerved (faint), moderately strigose on ribs;
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pappi tawny, 3.8–6 mm. 2n = 10.
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acute mucronulate or white-spinulose
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acute mucronulate or white-spinulose
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acute mucronulate or white-spinulose
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acute mucronulate or white-spinulose
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linear-oblanceolate
lanceolate or oblong
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reduced
more or less; distally
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short-strigose
sparsely to moderately
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campanulate
cylindro-campanulate
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glabrate
sparsely densely stipitate-glandular
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glabrate
sparsely densely stipitate-glandular
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translucent reddish-brown
sometimes
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