Butter-and-Eggs Linaria Vulgaris
The flowers of Butter-and-Eggs are yellow and orange, and the common name refers to these two shades of yellow. They bloom throughout the summer and fall and are common in waste places and fields at 3000-7000 ft. The plants are persistent deep-rooted perennial weeds, 8-20 in. tall, and may be eradicated whenever desired by short rotation of crops and thorough cultivation in spring and fall. They are regarded with suspicion as being poisonous and the juice mingled with milk constitutes a fly poison. At one time, however, the plants yielded what was considered a valuable skin lotion.