Cladanthus Cassini (Q2133)
Cladanthus is a taxon with the rank genus within the subtribe Santolininae
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Cladanthus Cassini
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Cladanthus is a taxon with the rank genus within the subtribe Santolininae
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Statements
taxon/id/Cladanthus Cassini
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Cladanthus Cassini
Cladanthus
Cassini
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 19: Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford University Press, New York.
accepted
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Stems usually 1, usually erect [prostrate], branched [immediately proximal to sessile, terminal heads], puberulent or villous to arachnose (hairs basifixed), glabrescent.
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Leaves mostly cauline;
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petiolate (proximal) or sessile (distal);
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blades obovate or spatulate to oblong or linear, 1–2 (–3) -pinnately lobed (ultimate lobes ± linear to filiform), ultimate margins entire or dentate, faces villous to arachnose, glabrescent.
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Heads radiate, borne singly or in lax, corymbiform arrays.
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Involucres hemispheric or broader, 5–8 [–12+] mm diam.
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Phyllaries persistent, 16–24+ in 2–3+ series, lance-linear or lanceolate to oblong or obovate, subequal, margins and apices (hyaline) scarious (apices ± dilated, rounded, abaxial faces ± villous or arachnose, glabrescent).
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Receptacles hemispheric to narrowly columnar or conic, paleate;
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paleae ± folded (carinate, each with central, redbrown resin duct).
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Ray-florets 12–18+, neuter or styliferous and sterile;
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corollas orange, yellow, or white with yellow bases, laminae ± oblong (spreading to reflexed, ± marcescent).
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Disc-florets 40–150 [–200+], bisexual, fertile;
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corollas orange or yellow, tubes ± cylindric (bases saccate, each obliquely spurred, adaxially clasping distal 0.5+ of cypsela), throats campanulate to funnelform, lobes 5, deltate (apices minutely crested or dilated).
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Cypselae ± obovoid (apices oblique), weakly flattened (stylopodia sublateral), ribs or nerves (weak): 2 lateral, 1 adaxial, faces finely striate, glabrous [hairy] (pericarps with myxogenic cells in longitudinal rows, without resin sacs);
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in lax , corymbiform arrays
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hemispheric
narrowly columnar or conic
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