Echinocereus triglochidiatus is a species of hedgehog cactus known by several common names, including kingcup cactus, claretcup, and Mojave mound cactus. This cactus is cultivated for its flowers and among the easiest species to grow and propagate.
In general, Echinocereus triglochidiatus is a mounding cactus, forming bulbous piles of from a few to hundreds of spherical to cylindrical stems. Plants may vary from densely spiny (usually) to no spines at all. Echinocereus triglochidiatus is the most wide-spread of the Echiniocereus species and is also the most variable in appearance. In fact, the several varieties are so different-looking that the only uniting factor is the bright red bloom and rounded petals.