Symphyotrichum ontarionis (Wiegand) G. L. Nesom (Q2447)
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Symphyotrichum ontarionis is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
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Symphyotrichum ontarionis (Wiegand) G. L. Nesom
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Symphyotrichum ontarionis is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
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Statements
taxon/id/Symphyotrichum ontarionis (Wiegand) G.L. Nesom
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Symphyotrichum ontarionis (Wiegand) G.L. Nesom
Symphyotrichum ontarionis
(Wiegand) 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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CA-ON
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CA-QC
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US-AL
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US-IL
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US-IN
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US-IA
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US-KS
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US-KY
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US-LA
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US-MI
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US-MN
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US-MS
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US-MO
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US-NC
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US-NY
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US-NE
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US-OK
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US-PA
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US-SD
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US-TN
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US-TX
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US-VT
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US-WI
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Stems 1– (2–3), ascending to erect (straight), proximally glabrate, distally uniformly villous or hirsute, or glabrous (var. glabratum).
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Leaves thin, margins scabrous, apices mucronate, abaxial faces usually sparsely to densely strigose or strigillose, sometimes glabrous (var. glabrum), adaxial usually strigose or scabrous, sometimes glabrate or glabrous (var. glabrum);
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basal withering by flowering, petiolate to subpetiolate (petioles narrowly winged, ciliate, bases sheathing), blades spatulate to oblanceolate-obovate, 10–40 × 5–10 mm, bases attenuate, margins crenate-serrate, apices acute to rounded;
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proximalmost cauline usually withering by flowering, petiolate or sessile (petioles narrowly winged, ± clasping), blades ovate or lanceovate to elliptic-lanceolate or oblanceolate, 20–80 (–12) × 5–35 mm, progressively reduced distally, bases attenuate to cuneate, margins serrate (sometimes coarsely) to crenate-serrate, apices acute to acuminate or short-caudate;
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distal sessile, blades elliptic-lanceolate to oblanceolate or lanceolate, (6–) 10–80+ × 2–25 mm, progressively reduced distally, bases cuneate, margins entire to serrulate, apices acute to acuminate.
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Heads in ample, open, paniculiform arrays, branches ± ascending or divaricate to long-arching, ± secund.
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Peduncles subsessile or 2–10 (–20) mm, ± pilose, bracts 1–5, linear-lanceolate, pilose, grading into phyllaries.
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Involucres campanulate, 3–5.5 mm.
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Phyllaries in (3–) 4–6 series, unequal, appressed or ± spreading, linear-obovate (outer) to oblong-lanceolate to linear (inner), bases indurate 1/3–3/4, margins narrowly scarious to apices, erose, hyaline, ciliate, green zones lanceolate, apices acute to acuminate, mucronulate, faces (outer) sparsely pilose or glabrous (var. glabratum), (inner) glabrous.
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Ray-florets (10–) 15–26;
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corollas usually white, rarely pinkish or light purple to blue, laminae 3.5–5.5 (–8) × 0.5–1.5 mm.
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Disc-florets 12–25;
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corollas cream or light yellow turning magenta or purple (ampliate), 2.5–4 (–4.5) mm, tubes shorter than funnelform throats, lobes slightly spreading to reflexed, lanceolate, 0.7–1.1 mm.
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Cypselae gray or tan, oblong-obovoid, sometimes ± compressed, 1.2–1.8 (–2) mm, 3–5-nerved, faces strigillose;
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pappi whitish to white, 3–3.5 mm.
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spatulate
oblanceolate-obovate
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reduced
progressively; distally
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lanceovate
elliptic-lanceolate or oblanceolate
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elliptic-lanceolate
oblanceolate or lanceolate
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reduced
progressively; distally
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light yellow turning magenta or purple
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compressed
sometimes more or less
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