Status: Exotic
Synonyms:
Norta altissima (Linnaeus) Britton
Sisymbrium altissimum resembles the much more common Sisymbrium irio in most respects, including the yellow flowers, sessile leaves, pinnatifid upper stem leaves, and long ascending fruits. On Sisymbrium altissimum, the fruiting pedicels are about as thick as the siliques, rather than much narrower as with S. irio.
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Sisymbrium altissimum, photo Russ Kleinman, Jack Carter & Richard Felger, Apache Creek, July 7, 2009
Sisymbrium altissimum, basal leaves, photo Russ Kleinman, Jack Carter & Richard Felger, Apache Creek, July 7, 2009
Sisymbrium altissimum, pedicels as wide or wider than silique, photo Russ Kleinman, Jack Carter & Richard Felger, Apache Creek, July 7, 2009
Sisymbrium altissimum, pinnatifid upper leaves, photo Russ Kleinman, Jack Carter & Richard Felger, Apache Creek, July 7, 2009
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