Aster Linnaeus (Q2142)
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Aster is a taxon with the rank genus within the tribe Astereae
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Aster Linnaeus
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Aster is a taxon with the rank genus within the tribe Astereae
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Statements
taxon/id/Aster Linnaeus
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Aster Linnaeus
Aster
Linnaeus
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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Stems ascending to erect, simple, ± densely hairy [glabrous], sometimes stipitate-glandular.
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sessile or petiolate;
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blades 1-nerved, spatulate, obovate (mainly basal), oblanceolate, lance-oblong, lanceolate, or linear, distal often reduced, margins entire or serrate [lobed], faces hairy.
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Heads radiate, borne singly or in corymbiform [paniculiform] arrays.
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Involucres broadly campanulate or hemispheric [cylindro-campanulate], 15–25 mm diam.
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Phyllaries persistent, 25–50 in 2–4 series, 1-nerved (flat), ovate to lanceolate, unequal to subequal, bases ± scarious, herbaceous distally or not, green zones along midnerves, margins scarious to hyaline, densely villous, strigillose, or glabrous, sometimes ± short-stipitate-glandular.
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Receptacles flat or convex, pitted, epaleate.
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Ray-florets 14–55 (–100) [–150] in 1 series, pistillate, fertile;
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corollas white, pink, purple, blue, or violet.
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Disc-florets 20–100+, bisexual, fertile;
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corollas usually yellow (sometimes reddening), slightly ampliate [tubular], tubes shorter than to equaling funnelform or campanulate throats, lobes 5, usually erect to spreading, rarely reflexed, lanceolate;
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style-branch appendages lanceolate.
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Cypselae obconic, compressed, 2 marginal ribs, faces ± densely strigillose [glabrous], sometimes short-stipitate-glandular;
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pappi persistent, of 20–30 white to tawny, ± equal, barbellate, apically usually attenuate, sometimes ± clavate bristles in 1–2 series.
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stipitate-glandular
sometimes
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short-stipitate-glandular
sometimes more or less
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strigillose
more or less densely
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short-stipitate-glandular
sometimes
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