Barrel cactus

The ribs are numerous and pronounced, and the spines are long and can range in color from yellow to tan to red, depending on the age of the plant and the species.

Barrel cactus buds typically start to bloom in April with a bright yellow or orange flower.

Native Americans collected the fruit as emergency food during extreme drought conditions.

Barrel cacti can fall over because they grow based on sun orientation.

They usually grow towards the south to prevent surface tissue sunburn, giving the name "compass cactus.