Sisymbrium altissimum

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Scientific Name Sisymbrium altissimum USDA PLANTS Symbol
Common Name Tumble Mustard, Jim Hill Mustard ITIS Taxonomic Serial No.
Family Brassicaceae (Mustard) SEINet
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Description Life zones and habitat: Semi-desert to foothills. Disturbed areas.
Plant: Erect, freely-branched annual up to 5 feet tall.
Leaves: Alternate leaves oblong in outline and up to 6 inches long, pinnately-lobed with 4 to 6 segments along each side; basal leaves with shallow lobes; stem leaves much more deeply lobed into linear segments almost appearing to be compound.
Inflorescence: Open, branched clusters of pale yellow to yellow flowers; 4 petals about 1/4-inch long; sepals about half as long.
References: Descr. adapted from and SEINet.
Colorado Status

© Tom Lebsack 2018