Difference between revisions of "Sericocarpus Nees (Q2288)"
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Latest revision as of 12:50, 24 June 2022
Sericocarpus is a taxon with the rank genus within the tribe Astereae
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Sericocarpus Nees
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Sericocarpus is a taxon with the rank genus within the tribe Astereae
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Statements
taxon/id/Sericocarpus Nees
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Sericocarpus Nees
Sericocarpus
Nees
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 erect, simple, glabrate to hairy.
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petiolate (basal) to sessile (cauline);
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basal blades spatulate, margins distally serrate;
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cauline blades 1-nerved (reticulately nerved), linear, obovate or ovate, reduced distally, margins serrate or entire, ciliate (apices acuminate to acute, sometime slightly cuspidate), faces glabrate or hairy.
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Heads radiate, (2–5 per branch in clusters) in corymbiform to broadly corymbiform (sometimes compact) arrays.
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Involucres cylindric, (3–9 ×) 2.4–8.5 mm.
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Phyllaries 15–30 in 3–5 series, 1-nerved (± keeled), thumbnail-shaped, inner more linear, unequal, bases ± indurate, margins scarious, ciliate, apices with dark green zones, (faces glabrate to hairy).
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Receptacles slightly convex, pitted, epaleate.
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Ray-florets 1–6, pistillate, fertile;
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Disc-florets 5–19, bisexual, fertile;
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corollas white to cream, tubes shorter (longer in S. linifolius) than weakly funnelform throats, lobes 5, erect to spreading, triangular;
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style-branch appendages linear-lanceolate.
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Cypselae fusiform to obconic, terete to slightly compressed, 7–10-ribbed, ± densely strigose;
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pappi persistent, of 25–50, white to tan or rust, barbellate bristles in (2–) 3 (–4) series (outermost, when present, 0.1–1 mm, outer distally attenuate, 3–7 mm, inner distally clavate, 3–8 mm).
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