Descurainia pinnata

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Scientific Name Descurainia pinnata USDA PLANTS Symbol
Common Name Tansy Mustard, Western Tansymustard ITIS Taxonomic Serial No.
Family Brassicaceae (Mustard) SEINet Reference
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Description Habitat: Widespread throughout US. Sandy, calcareous soils in disturbed areas, roadsides, fence lines.
Plant: Upright annual, 1 to 2-1/2 ft tall, usually branched upper.
Leaves: Basal leaves petiolate, withering before flowering; stem leaves alternate, sessile or short-petiolate; blades 1/2 to 4-inches long, once or twice pinnate, with 4-9 pairs of linear to ovate lateral lobes; surfaces hairy.
Inflorescence: Many small yellow blossoms in elongated, open racemes, each about 3/16-inch across with 4 petals subtended by 4 sepals.
Bloom Period: February to June,
Fruit: Gently-curved siliques 1/2 to 1-inch long on 1-inch long pedicels.
References: "Wildflowers of Texas" by Geyata Ajilvsgi, "Wildflowers of the Texas Hill Country" by Marshall Enquist, and SEINet.
Texas Status

© Tom Lebsack 2019