Pyrus Linnaeus (Q4389)
Pyrus is a taxon with the rank genus within the tribe Maleae
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Pyrus Linnaeus
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Pyrus is a taxon with the rank genus within the tribe Maleae
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Statements
taxon/id/Pyrus Linnaeus
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Pyrus Linnaeus
Pyrus
Linnaeus
FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
accepted
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Trees, often pyramidal or oval in silhouette, (50–) 80–300 dm.
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Stems 1–many, erect;
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bark gray, reddish or orangebrown, smooth, older with gray or blackish rectangular plates;
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short-shoots sometimes present;
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thorns present or absent;
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young branches glabrous or tomentose;
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buds ovoid, narrowly ovoid, or triangular-ovoid, apex obtuse or acuminate, glabrous or sparsely to densely tomentose.
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Leaves deciduous, cauline, simple;
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stipules sometimes caducous, free, lanceolate, margins serrate or entire;
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blade suborbiculate, ± ovate or ovatelanceolate to elliptic, oblong, or obovate, (2–) 5–9 (–12) cm, firm or leathery, margins flat, serrate, crenate, serrulate, crenulate, or entire, venation pinnate, surfaces hairy or glabrous.
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Inflorescences terminal on short branches, 4–9-flowered, racemes or simple corymbs, umbellike, with short persistent axis, glabrous or tomentose;
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bracteoles absent.
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Pedicels present.
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Flowers developing with or before leaves, perianth and androecium epigynous, 15–45 mm diam.;
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hypanthium campanulate or cupular, 3–5 mm diam., interior usually pubescent, exterior hairy or glabrous;
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sepals 5, reflexed, lanceolate or triangular-lanceolate to triangular or triangular-ovate;
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petals 5, white or creamy, ovate or ovate-elliptic to obovate or obovate-elliptic, base short-clawed, apex rounded;
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stamens 20, equal to or slightly shorter than petals;
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carpels 2–5, mostly connate, fully adnate to hypanthium, glabrous, styles terminal, distinct (constricted basally by hypanthium), ± equal to stamens;
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fleshy with abundant stone or grit cells;
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hypanthium persistent;
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sepals persistent or deciduous, reflexed;
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carpels cartilaginous;
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styles persistent or not.
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less ovate or ovatelanceolate
elliptic oblong or obovate
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less ovate or ovatelanceolate
elliptic oblong or obovate
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less ovate or ovatelanceolate
elliptic oblong or obovate
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triangular-lanceolate
triangular or triangular-ovate
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ovate-elliptic
obovate or obovate-elliptic
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