Difference between revisions of "Symphyotrichum laeve (Linnaeus) Á. Löve & D. Löve (Q2433)"
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Latest revision as of 12:49, 24 June 2022
Symphyotrichum laeve is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
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Symphyotrichum laeve (Linnaeus) Á. Löve & D. Löve
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Symphyotrichum laeve is a taxon with the rank species within the section Symphyotrichum sect. Symphyotrichum
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Statements
taxon/id/Symphyotrichum laeve (Linnaeus) Á. Löve & D. Löve
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Symphyotrichum laeve (Linnaeus) Á. Löve & D. Löve
Symphyotrichum laeve
(Linnaeus) Á. Löve & D. Löve
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-AB
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CA-BC
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CA-MB
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CA-NB
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CA-ON
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CA-QC
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CA-SK
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CA-YT
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US-AL
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US-AR
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US-CA
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US-CO
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US-CT
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US-DC
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US-DE
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US-FL
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US-GA
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US-ID
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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-ME
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US-MA
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US-MD
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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-MT
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US-NC
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US-ND
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US-NH
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US-NJ
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US-NM
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US-NY
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US-NE
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US-NV
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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-SD
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US-TN
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US-TX
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US-UT
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US-VA
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US-VT
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US-WV
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US-WA
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US-WY
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stoutly short-rhizomatous, with thick, woody caudices or a few, long rhizomes.
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Stems 1–5+, erect (straight, glaucous, sometimes reddish proximally), glabrous, sometimes sparsely hirsute distally.
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Leaves (glaucous) thick, firm, ± fleshy, margins crenate-serrate or serrulate or entire, scabridulous, apices mucronulate, faces glabrous;
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basal usually withering by flowering or sometimes persistent (var. purpuratum), petiolate (petioles ± winged, bases dilated, sheathing), blades spatulate or oblong to ovate or lanceolate-ovate, 30–200 × 10–25 (–30) mm, bases attenuate or cuneate to rounded, margins crenate-serrate to serrulate, apices acute to obtuse or rounded;
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proximal cauline often withering by flowering, petiolate or subsessile or sessile (petioles narrowly to broadly winged, clasping), blades ovate or oblong-ovate to lanceolate or linear-lanceolate, sometimes ± panduriform, (40–) 80–150 (–180) × (10–) 20–45 mm, bases attenuate to rounded or ± shallowly auriculate-clasping, margins entire or shallowly crenate-serrate, minutely scabrous, apices acute or obtuse, callus-pointed;
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distal sessile, blades lanceovate or lanceolate to linear, 7–45 × 1–14 mm, progressively reduced distally (abruptly so in arrays), bases auriculate and ± clasping to rounded, margins entire.
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Heads in broad, sometimes ± flat-topped, paniculiform arrays, branches stiffly ascending (rarely arching), leafy with small, gradually reduced branch leaves.
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Peduncles 0.2–6+ cm, glaucous, glabrous or puberulent in lines, bracts 3–6, densely spaced, subulate or linear-lanceolate to linear, subclasping, apices sometimes purplish, grading into phyllaries.
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Involucres campanulate to cylindro-campanulate, (4.2–) 5–7 (–8) mm.
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Phyllaries in 4–6 series, appressed, subulate or lanceolate (outer) to oblong-lanceolate or linear-lancolate or oblanceolate, unequal (sometimes appearing subequal), bases indurate 1/2–3/4, margins scarious, erose, hyaline, ciliolate distally, green zones mostly diamond-shaped to ± lanceolate (some inner, or most in var. geyeri), apices acute to acuminate, sometimes ± obtuse, red-mucronate or apiculate, faces glabrous.
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Ray-florets (11–) 13–23 (–34);
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corollas usually pale to dark blue or purple, seldom white, laminae (6–) 7.2–11.3 (–14.6) × 1.5–2.5 mm.
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Disc-florets (17–) 19–33 (–43);
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corollas yellow turning purplish red, 3.5–6.1 mm, tubes slightly shorter than funnelform throats, lobes triangular, (0.4–) 0.6–1 mm.
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Cypselae deep purple to brown, oblong-obovoid, compressed, 2–3.5 mm, 4–5-nerved, faces glabrous or glabrate;
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pappi tawny to red or rose-tinged, 5–7 mm.
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hirsute
sometimes sparsely; distally
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ovate or lanceolate-ovate
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crenate-serrate to serrulate
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crenate-serrate to serrulate
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ovate or lanceolate-ovate
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crenate-serrate to serrulate
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oblong-ovate
lanceolate or linear-lanceolate
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panduriform
sometimes more or less
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oblong-ovate
lanceolate or linear-lanceolate
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panduriform
sometimes more or less
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auriculate-clasping
more or less shallowly
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auriculate-clasping
more or less shallowly
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reduced
progressively; distally
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ascending
in broad , sometimes more or less flat-topped , paniculiform arrays; stiffly
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campanulate
cylindro-campanulate
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yellow turning purplish red
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