seeds of Calochortus nuttallii, Sego Lily is a bulbous perennial which is endemic to the Western United States. It has 1 to 4 flowers, each with 3 white petals which are tinged with lilac (occasionally magenta) and have a purplish band radiating from the yellow base. These appear in early summer. Plants are around 6–18 inches in height. Hardy in zones 3-9.