Cirsium hookerianum (Hookers Thistle, White Thistle) [Home] | [Berries] | [Cactus] | [Edible] | [Herbs] | [Links] | [Trees] | [Weeds] | [Wildflowers] Click photo to enlarge More Photos: Habitat: Grows in most open sites in the mountains. Edibility: Edible Color: Light Green Description: This plant is related to the artichoke. The roots are edible and were enjoyed by native Americans.