Difference between revisions of "Descurainia Webb & Berthelot (Q3689)"
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Latest revision as of 13:00, 24 June 2022
Descurainia is a taxon with the rank genus within the tribe Descurainieae
| Language | Label | Description | Also known as |
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Descurainia Webb & Berthelot
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Descurainia is a taxon with the rank genus within the tribe Descurainieae
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Statements
taxon/id/Descurainia Webb & Berthelot
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Descurainia Webb & Berthelot
Descurainia
Webb & Berthelot
FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York.
accepted
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glabrous, glabrate, or sparsely to densely pubescent, trichomes usually short-stalked, dendritic, rarely also simple, sometimes mixed with unicellular, glandular, clavate papillae.
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Stems erect or prostrate, unbranched or branched basally and/or distally.
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petiolate or sessile;
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basal (often withered by flowering), rosulate, petiolate, blade (1–3-pinnate), margins entire or toothed;
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cauline petiolate or sessile, blade often similar to basal.
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Fruiting pedicels divaricate or erect, slender.
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Flowers: sepals erect to spreading, ovate to oblong or linear;
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petals usually obovate or oblanceolate, rarely oblong, (shorter to longer than sepals), claw obsolete or distinct, (apex obtuse);
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stamens tetradynamous;
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filaments not dilated basally;
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anthers oblong to ovate, (apex obtuse);
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nectar glands confluent, subtending bases of stamens, median glands present.
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Fruits siliques or silicles, sessile, usually linear, oblong, clavate, or fusiform, rarely ellipsoid or obovoid, smooth or torulose, terete;
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valves each often with distinct midvein, usually glabrous, rarely pubescent;
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ovules 5–100 per ovary;
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style usually absent, rarely distinct;
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Seeds uniseriate or biseriate, plump, wingless, oblong or ellipsoid;
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seed-coat (minutely reticulate), usually mucilaginous when wetted;
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