In addition to thousands of saguaro cacti, Ironwood Forest National Monument is home to ironwood trees, the longest-living trees in the Sonoran Desert and an important part of the desert ecology.

There are two types of cacti – desert types and forest types. Desert cacti are very hardy and thrive in full sun, low water, ...

Cacti grow in desert conditions where there is very little ... The following adaptations make them suited to mountain forests: Needles reduce water loss and protect from grazing animals.

Cacti grow in desert conditions where there is very little ... The following adaptations make them suited to mountain forests: Needles reduce water loss and protect from grazing animals.