Example; “Cane Cholla” Cactus-Opuntia spinosir
“Stems” are actually modified branches that serve for water storage, photosynthesis, and flower production.
- “Spines” are modified leaves
Grows in the Chihuahuan Desert of Southern Arizona and Southwestern New Mexico
- Within this range, it only grows from 2000 to 7000 feet-from desert floors and glasslands to the lower slopes of mountains.
- Habitats within the American deserts are highly stratified by elevation.