Coreopsis Linnaeus (Q2571)
Coreopsis is a taxon with the rank genus within the tribe Coreopsideae
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Coreopsis Linnaeus
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Coreopsis is a taxon with the rank genus within the tribe Coreopsideae
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Statements
taxon/id/Coreopsis Linnaeus
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Coreopsis Linnaeus
Coreopsis
Linnaeus
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.
accepted
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also tropical New World and Old World. Early leaves of some coreopsises often differ from later leaves on individual plants
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Annuals, perennials, subshrubs, or shrubs, 10–80 (–200+) cm (often rhizomatous or with cormiform bases, stoloniferous in C. auriculata).
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Stems usually 1, erect, branched distally or ± throughout.
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petiolate or sessile;
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blades simple and entire (dentate in C. latifolia), or ± pinnately or pedately lobed, faces glabrous or hairy.
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Heads radiate, borne singly or in open, ± corymbiform arrays.
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Calyculi of (3–) 8+, distinct, ± herbaceous bractlets.
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Involucres ± globose to cylindric, 4–25+ mm diam.
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Phyllaries usually ± 8 in ± 2 series (usually distinct, rarely connate ± 1/10 their lengths, mostly oblong to linear, ± membranous, margins ± scarious).
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Receptacles flat to convex, paleate;
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paleae falling, ovate to linear or subulate, ± flat, ± scarious (not adnate to and not falling with cypselae except in C. bigelovii).
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Ray-florets mostly (5–) 8 (–12+, more in “double” cultivars), neuter, or styliferous and sterile, or pistillate and fertile;
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corollas usually yellow, sometimes redbrown to purple proximally, sometimes wholly purple or pink to white.
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Disc-florets 8–150+, bisexual, fertile;
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corollas usually yellow, sometimes redbrown to purple at tips or throughout, tubes equaling or shorter than narrowly funnelform throats, lobes 4 or 5 (adaxial sinus seldom deeper than others).
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Cypselae obcompressed, ± orbiculate to ovate, oblong, or linear, usually thin-margined or winged, wings membranous to chartaceous or corky, entire or lobed to toothed, sometimes ciliolate;
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faces smooth or ± papillate to tuberculate;
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branched
distally; distally; more or less throughout; throughout
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more or less pinnately; pinnately; pedately
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in open , more or less corymbiform arrays
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less orbiculate
ovate oblong or linear
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less orbiculate
ovate oblong or linear
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less orbiculate
ovate oblong or linear
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more or less papillate
tuberculate
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