Sisymbrium spp.
Family: Brassicaceae
Sisymbrium image
Max Licher  
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.
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.
Images
not available
Map not
Available
Images
not available
Map not
Available
Image of Sisymbrium austriacum
Map not
Available
Images
not available
Map not
Available
Image of Sisymbrium brandegeanum
Map not
Available
Images
not available
Map not
Available
Image of Sisymbrium canescens
Map not
Available
Image of Sisymbrium coulteri
Map not
Available
Image of Sisymbrium deflexum
Map not
Available
Images
not available
Map not
Available
Image of Sisymbrium humile
Map not
Available
Image of Sisymbrium indicum
Map not
Available
Image of Sisymbrium polyceratium
Map not
Available
Image of Sisymbrium polymorphum
Map not
Available
Images
not available
Map not
Available
Images
not available
Map not
Available
Images
not available
Map not
Available
Image of Sisymbrium virgatum
Map not
Available