This section is from the book "British Wild Flowers - In Their Natural Haunts Vol5-6", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
The habitat of this plant is cornfields, fields, and roadsides, cultivated ground. The habit is erect. The stem is simple, slender, the radical leaves stalked, the stem-leaves oblong, arrow-shaped, toothed, smooth, with rounded basal lobes. The flowers are white in a long raceme, the pods flat, on slender, spreading flower-stalks, large, rounded, notched, the valves having a broad wing, the cells 5-6-seeded, the seeds rough and finely furrowed, dark, with small pinholes. The plant is 1 ft. in height. The flowers are in bloom from May to July, and the plant is a herbaceous annual.
The habitat of this plant is cornfields and cultivated fields. The habit is erect, pyramidal. The root is slender. The stem is stout, erect or spreading, hairy. The leaves are simple, with coarse teeth, the lobes distinct, the terminal lobe largest. The flowers are white, with white petals with violet veins, or yellow with darker veins. The pod is moniliform or bead-like, the beak longer, with slender ribs, awl-shaped, flat. The pods open at the base above the first segment, which is barren and small. The plant is 1-2 ft. high. It flowers in June and July, and is a herbaceous annual.