This small, globe-shaped cactus is usually green but may turn purple under full sunlight. The long central spine may be up to 6 inches long and curved back on itself at the tip.
Desert: Chihuahuan Desert of west Texas
Height: To 16 inches
Spines: Slender yellow, red or brown twist in many directions.
Flowers: Yellow with reddish bases bloom in May through July
Fruit: Brown and juicy
Elevation: Sea level-5,000 feet
