Opuntia trichophora
"Opuntia trichophora" is a species of cactus in the genus "Opuntia", more commonly known as prickly pears or nopal. "O. trichophora" is distributed throughout parts of New Mexico, Colorado, and Utah, and may have disjoint populations in Wyoming, southern Montana, and southern Idaho. "Opuntia trichophora" is a diploid (2n=22) but has sometimes been treated as a variety of "Opuntia polyacantha" a tetraploid (2n=44). "O. trichophora" tends to have longer spines than "O. polycantha" or "O. macrorhiza".