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Sisymbrium
Family: Brassicaceae
Sisymbrium image
Max Licher
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Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Plants not scapose; pubescent or glabrous. Stems often erect, sometimes ascending, rarely subprostrate or decumbent, often branched distally, sometimes unbranched. Leaves basal and cauline; petiolate or sessile; basal rosulate or not, petiolate, blade margins dentate, sinuate, lyrate, runcinate, or pinnately lobed [entire]; cauline similar to basal, (blade smaller distally). Racemes (several-flowered), often considerably elongated in fruit. Fruiting pedicels ascending, divaricate, or erect, slender or stout (sometimes as wide as fruit). Flowers: sepals ovate or oblong, (glabrous or pubescent); petals yellow, obovate, spatulate, oblong, or suborbicular, (longer than sepals), claw differentiated from blade, (subequaling or longer than sepals, apex obtuse or emarginate); stamens tetradynamous; filaments not dilated basally; anthers oblong, (apex obtuse); nectar glands confluent, subtending bases of stamens, median glands present. Fruits usually sessile, rarely shortly stipitate (gynophore to 1 mm), usually linear, rarely lanceolate or subulate, smooth or torulose; valves each with prominent midvein and 2 conspicuous marginal veins, usually glabrous, rarely pubescent; replum rounded; septum complete; style subclavate [clavate, conical, cylindrical]; stigma capitate (lobes not decurrent). Seeds plump, not winged, oblong [ovoid]; seed coat (reticulate or papillate), not mucilaginous when wetted; cotyledons incumbent. x = 7.
Vascular plants of NE US and adjacent Canada
Sep obtuse, ascending; pet small, yellow, obovate to spatulate, gradually narrowed to the claw; glands of the short stamens usually annular; filaments slender; anthers oblong; ovary cylindric; style short, scarcely differentiated; stigma capitate; ovules numerous; frs elongate, linear or subulate, terete or slightly quadrangular, tipped with the minute, persistent style; valves 3-nerved, with conspicuous midnerve and thinner lateral nerves; seeds in one row, oblong, smooth or nearly so; ours annuals or winter-annuals, ±pubescent with simple hairs, at least the lower lvs deeply pinnatifid. 90, widespread.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Sisymbrium acutangulum
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Sisymbrium alliaria
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Sisymbrium altissimum
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Sisymbrium amphibium
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Sisymbrium austriacum
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Sisymbrium brachycarpum
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Sisymbrium brandegeanum
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Sisymbrium brassiciforme
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Sisymbrium canescens
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Sisymbrium coulteri
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Sisymbrium deflexum
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Sisymbrium dentatum
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Sisymbrium ekmanii
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Sisymbrium erysimoides
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Sisymbrium gariepinum
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Sisymbrium haitiense
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Sisymbrium heteromallum
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Sisymbrium humile
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Sisymbrium indicum
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Sisymbrium irio
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Sisymbrium linifolium
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Sisymbrium loeselii
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Sisymbrium luteum
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Sisymbrium nasturtium
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Sisymbrium officinale
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Sisymbrium orientale
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Sisymbrium polyceratium
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Sisymbrium polymorphum
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Sisymbrium runcinatum
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Sisymbrium salsugineum
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Sisymbrium shinnersii
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Sisymbrium strictissimum
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Sisymbrium turczaninowii
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Sisymbrium virgatum
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Sisymbrium wootonii
Image of Sisymbrium wootonii
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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