Symphyotrichum anticostense (Fernald) G. L. Nesom (Q2416)
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Symphyotrichum anticostense is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
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Symphyotrichum anticostense (Fernald) G. L. Nesom
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Symphyotrichum anticostense is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
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Statements
taxon/id/Symphyotrichum anticostense (Fernald) G.L. Nesom
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Symphyotrichum anticostense (Fernald) G.L. Nesom
Symphyotrichum anticostense
(Fernald) 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-NB
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Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.
CA-QC
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Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
CA-NB
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CA-QC
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US-ME
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Stems 1, erect (straight, often reddish), glabrous.
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Leaves coriaceous, margins remotely serrulate or entire, slightly revolute, scabrous, apices mucronulate, faces glabrous;
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basal withering by flowering, long-petiolate (petioles narrowly winged, bases sheathing), blades lanceolate to oblanceolate, ca. 55+ × 3+ mm, bases slightly attenuate, apices acute;
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proximal cauline mostly withering by flowering, petiolate (petioles narrowly winged, sheathing), blades lanceolate or oblanceolate to linear-lanceolate or oblanceolate, arcuate, 90–160 × 5–18 mm, bases cuneate to slightly attenuate, margins entire or serrulate, apices acute;
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distal sessile, blades linear to linear-lanceolate, 8–50 × 1.5–5 mm, progressively reduced distally, more strongly so in arrays, bases cuneate to rounded, sometimes slightly clasping, apices acute to acuminate.
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Heads in elongate, loosely racemiform arrays, branches ascending, heads single at ends of primary branches or long pedicels.
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Peduncles 0.8–5.7 cm, slender, sparsely ot moderately pilosulous, bracts 3–5, linear-lanceolate, often crowded proximal to and surpassing heads.
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Involucres campanulate, 6–10 mm.
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Phyllaries in 2–3 series, oblong-oblanceolate or spatulate (outer) or oblong-lanceolate to linear-lanceolate or linear (inner), ± unequal, bases indurate 1/3–3/4, margins hyaline, scarious, erose distally, sparsely ciliolate distally, green zones lanceolate, outer often foliaceous distally, apices acute to long-acuminate, ± spreading, faces glabrous.
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Ray-florets 25–44;
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corollas usually pale-purple or lilac, sometimes white, laminae 9.5–20 × 0.7–1.4 mm.
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Disc-florets 29–52;
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corollas yellow becoming reddish purple, 5–6 mm, tubes slightly shorter than funnelform throats, lobes lanceolate, 0.6–0.7 mm.
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Cypselae reddish tan, obovoid, compressed, 1.5–2.8 mm, 4–5-nerved, faces strigillose;
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pappi yellowish, 7–8 mm. 2n = 80.
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oblanceolate
linear-lanceolate or oblanceolate
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oblanceolate
linear-lanceolate or oblanceolate
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oblanceolate
linear-lanceolate or oblanceolate
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reduced
progressively; distally
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ascending
in elongate , loosely racemiform arrays
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yellow becoming reddish purple
becoming
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