Eurybia divaricata (Linnaeus) G. L. Nesom (Q2241)
Eurybia divaricata is a taxon with the rank species within the genus Eurybia
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Eurybia divaricata (Linnaeus) G. L. Nesom
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Eurybia divaricata is a taxon with the rank species within the genus Eurybia
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taxon/id/Eurybia divaricata (Linnaeus) G.L. Nesom
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Eurybia divaricata (Linnaeus) G.L. Nesom
Eurybia divaricata
(Linnaeus) 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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Newmaster, S.G. & S. Ragupathy. 2005. Flora Ontario - Integrated Botanical Information System (FOIBIS), Phase I. University of Guelph, Canada. http://www.uoguelph.ca/foibis http://www.uoguelph.ca/foibis/
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-ON
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CA-QC
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US-AL
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US-CT
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US-DE
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US-DC
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US-GA
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US-KY
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US-ME
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US-MD
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US-MA
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US-MI
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US-NH
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US-NJ
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US-NY
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US-NC
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US-OH
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US-PA
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US-RI
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US-SC
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US-VT
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Plants 28–90 (–120) cm, in ± dense clones (lacking sterile rosettes);
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rhizomes branched, elongate, becoming woody.
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Stems 1, erect, simple, flexuous, glabrate to sparsely puberulent proximally, densely puberulent distally.
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Leaves basal and cauline, thin, margins sharply serrate, teeth (6–15 per side) mucronulate, ciliate, apices acuminate, abaxial faces sparsely strigose or villous, particularly villous along veins, adaxial glabrescent to sparsely strigose, veins sparsely stipitate-glandular;
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basal and proximal withering by flowering, petiolate (petioles 20–70 mm), blades ovate, 19–65 × 17–60 mm, basal smaller than proximal, bases cordate (sinuses narrow, curved);
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cauline petiolate, petioles often ± winged (15–70 mm), blades ovate, 20–200 × 10–100 mm, bases cordate to rounded;
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distal (arrays) usually sessile, sometimes subpetiolate, blades ovate to lanceolate, 5–20 × 1–8 mm, bases rounded.
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Heads 4–50 (–100+) in ± flat-topped corymbiform arrays.
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Peduncles to 1.5 cm, densely hairy, eglandular;
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Involucres cylindro-campanulate, 4.2–6 mm, much shorter than pappi.
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Phyllaries 25–30 in 4–5 series, inner purplish distally, oblong (outer) to lanceolate or linear-lanceolate (inner), strongly unequal, bases indurate, green zones in distal 1/2 (outer) to 1/3 or along distal midveins (inner), margins narrowly scarious, densely fimbriate-ciliate, apices rounded to acute, faces sparsely hairy, sometimes sparsely stipitate-glandular;
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Ray-florets 5–10 (–12);
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corollas white, 6–12 × 1.5–2.2 mm.
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Disc-florets 12–19 (–25);
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corollas yellow, 4.1–4.8 (–5.5) mm, abruptly ampliate, tubes (2.3–2.6 mm) longer than campanulate throats (0.9–1.2 mm), lobes reflexed, lanceolate, 0.7–1.4 mm.
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Cypselae brown, cylindro-obovoid, slightly compressed, 2.6–3.8 mm, ribs 7–10 (tan to stramineous), faces sparsely strigillose;
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pappi of reddish to cream-colored (fine, barbellulate, sometimes apically ± clavate) bristles 3.7–5 mm, equaling or longer than disc corollas.
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glabrate
sparsely puberulent proximally
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puberulent
densely; distally
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glabrescent
sparsely strigose
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by flowering , petiolate , blades ovate , 19-65×17-60 mm , basal blades smaller than proximal blades , bases
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by flowering , petiolate , blades ovate , 19-65×17-60 mm , basal blades smaller than proximal blades , bases
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by flowering , petiolate , blades ovate , 19-65×17-60 mm , basal blades smaller than proximal blades , bases
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by flowering , petiolate , blades ovate , 19-65×17-60 mm , basal blades smaller than proximal blades , bases
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stipitate-glandular
sometimes sparsely
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