yes.
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 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.
An edible lily bulb is the underground part of a lily plant that is harvested and consumed as a vegetable. It has a crunchy texture and a mild flavor, often used in Asian cuisine in dishes like stir-fries, soups, and salads. Lily bulbs are rich in nutrients and are believed to have health benefits such as promoting relaxation and reducing inflammation.
The sego lily adapts to dry sand and hot sun conditions by having a deep root system to access moisture, waxy leaves to reduce water loss through evaporation, and the ability to go dormant during periods of extreme heat or drought. These adaptations help the sego lily survive in arid environments.