Scientific name
Opuntia phaeacantha
Also Known As
Central pricklypear, Hairspine cactus, Starvation pricklypear
Shrub-like cacti, 1 to 2 ft tall. Spiny pads 2 to 6 inches long. Flowers pink, purple, or yellow, 2 to 3.5 in wide. Cylindrical fruits are brownish and dry with little spines.

Scientific name
Cylindropuntia imbricata
This cactus is can be shrubby or tree-like in appearance with many spiny branches. It has bright pink flowers and yellow fruits.