Erysimum cheiranthotdes (Name means "blister drawing.") - Family, Mustard. Color, yellow. Flowers, small, on slender, diverging stalks. Pods, short. Leaves, entire, lance-shaped, 1 to 4 inches long, the upper sessile, the lower tapering into a short petiole. Minute, split hairs cover the plant, which grows 2 feet high or less. June to August.
Along river-banks and in wet fields, or in more open places, in poor soil.