General: Hedgehog Cactus is the general name for a group of cactus that tend to grow in clumps or mounds on the ground with
short, stout stems. The stems grow to about 4-inches wide and about 1-ft tall, and they have ribs (flutes) running from bottom to top.
The stems are loosely covered with relatively long, stout spines. Flowers grow from sides of stem. The spines tend to be straight.
Hedgehog Cactus are never dominant components of a vegetation community, but they can be fairly common. Hedgehogs occur in the Upper
Sonoran (Mojave Desert Scrub and
Pinyon-Juniper Woodland) and higher life zones. Two species occur around Las Vegas.
Family: Cactus (Cactaceae).
Other Names: mound cactus, calico cactus.
Plant Form: Upright, short, stout stems that emerge from the ground. Stems ribbed, with spines growing from the top of the ridges.