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Photographer: Robert W. Freckmann
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Family Brassicaceae
Erysimum cheiranthoides L.
worm-seed mustard, worm-seed wallflower
Erysimum: from the Greek eryomai, "to help or save," because some of the species supposedly had a medicinal value
cheiranthoides: like Cheiranthus (wallflower)
Hazardous 
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| Status: | Introduced - naturalized |
| Plant: | erect, annual, 8"-40" tall forb, very hairy; stems usually unbranched |
| Flower: | bright yellow, 4-parted, 1/4"-1/3" wide; inflorescence a long, dense cluster (raceme) of stalked flowers; blooms June-Aug. |
| Fruit: | long, thin, 4-angled pod, erect to pointing upward, seeds in 1 row |
| Leaf: | linear to oblong, mostly toothless |
| Habitat: | wet to moist; disturbed sites |
| (Glossary) |
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