The edible part of the sego lily is the bulb, but be cautious, the sego lily can resemble very toxic flowers.
Because when the pioneers didn't have food because of the cricketts, they ate the roots of a sego lily.
The Utah state flower is the Sego lily.
The Sego Lily is Utah's state flower. It is a yellowish or brightish yellow, dark violet and red, sometimes, and white. For most pictures of the Sego Lily, go to Google images and type in Sego Lily.
The Lily family is a fairly big one, there's lot's of edible as well as poisonous bulbs within the family. To know them all, you'd have to get a lot of studying under your belt. The most commonly eaten Lily bulb, though, is the Tiger Lily.
The Sego Lily
white
sego
The sego lily, which is the state flower of Utah.
http://www.geocities.com/naturenotes/segolily.htm
Spider plants are in the lily family, related to day lilies, which have edible tuberous roots. So, technically spider plant roots should be edible by the definition of being non-toxic. However, I would not recommend eating your decorative house plants.
No. It lives in the desert and is the State Flower of Utah.