Descurainia pinnata (weed)
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Descurainia pinnata (click on image to enlarge it)
Author(s): Richard Old, XID Services, Inc.
Source: IPM Images
Author(s): Richard Old, XID Services, Inc.
Source: IPM Images

Descurainia pinnata (click on image to enlarge it)
Author(s): Richard Old, XID Services, Inc.
Source: IPM Images
Author(s): Richard Old, XID Services, Inc.
Source: IPM Images
Descurainia pinnata (weed) (Walt.) Britt. - (pinnate tansymustard, western tansymustard)
This plant is found in North America and can be invasive in some states. It grows in semi-arid areas and is occasionally reported as an agricultural weed. It grows to a height of about 50 cm with pinnately lobed leaves and yellow or yellow-white flowers.