Difference between revisions of "Symphyotrichum laurentianum (Fernald) G. L. Nesom (Q2484)"
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Latest revision as of 12:49, 24 June 2022
Symphyotrichum laurentianum is a taxon with the rank species within the section Symphyotrichum sect. Conyzopsis
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Symphyotrichum laurentianum (Fernald) G. L. Nesom
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Symphyotrichum laurentianum is a taxon with the rank species within the section Symphyotrichum sect. Conyzopsis
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Statements
taxon/id/Symphyotrichum laurentianum (Fernald) G.L. Nesom
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Symphyotrichum laurentianum (Fernald) G.L. Nesom
Symphyotrichum laurentianum
(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-PE
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Catling, P.M., D.S. Erskine & R.B. MacLaren. 1985. The Plants of Prince Edward Island with new records, nomenclatural changes, and corrections and deletions. Agriculture Canada, Research Branch, Ottawa. Publication 1798. 272 pp.
CA-QC
1 reference
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-PE
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CA-QC
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Stems 1, decumbent to erect (straight), glabrous.
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Leaves ± fleshy, margins entire, eciliate, apices obtuse, faces glabrous;
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basal deciduous at bolting, petiolate, blades oblanceolate 44–50 × 5–7 mm [cult.], bases attenuate;
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proximal cauline and some distal withering by flowering;
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cauline sessile, blades linear-lanceolate to spatulate, 15–55 × 1–4 mm, reduced distally, bases cuneate;
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distal sessile, blades linear-lanceolate to spatulate.
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Peduncles glabrous, bracts linear.
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Involucres campanulate, 5–8+mm.
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Phyllaries in 3–4 series, lanceolate, subequal, bases scarious, margins eciliate, green zones foliaceous (outer), apices obtuse, faces glabrous.
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Pistillate florets 14–47+ in 2–3+ series;
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laminae 0 (corolla-tubes 2–2.4 mm, shorter than style-branches).
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Disc-florets 5–8+;
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corollas yellow, 3.1–3.9 mm, lobes deltate to triangular, 0.2–0.3 mm.
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Cypselae purple, obovoid, ± compressed, 2.8–2.9 mm, 2–4-nerved, faces strigillose;
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pappi white to yellowish white, 4.8–5.2 mm. 2n = 14.
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