Opuntia streptacantha aka Gracemere Pear

Opuntia streptacantha, or red prickly pear, belongs to the cactus family. Its native range extends from Mexico south into Guatemala. It grows in regions with a seasonally dry tropical climate. In the wild, it forms part of dry shrubland vegetation. These habitats lie at 5,250–7,870 feet [1,600–2,400 metres] above sea level. People also grow this cactus across its native range.

This evergreen succulent forms a branching shrub or small tree. Reported heights range from 6.6–16.4 feet [2–5 metres]. One reference also lists a height of 9.8 feet [3 metres]. Its trunk can reach 2.6 feet [0.8 metres] high. Trunk width can reach 1–1.3 feet [0.3–0.4 metres]. The stems consist of separate sections called cladodes. Each section measures about 0.8–1 foot [0.25–0.3 metres] long. Many branches give the plant its shrubby or tree-like shape.

Bees and other insects pollinate this species. Its rounded to egg-shaped fruit ranges from yellow to red. Each fruit measures about 0.13–0.14 feet [0.040–0.042 metres] long. The pulp has a mildly sour or slightly sweet taste. Ripe fruit can stay attached for a year or longer. Reports describe it as still edible after that time. People eat the fruit fresh, cook it, or make preserves. Local products include jelly, wine, and a drink called colonche.

The stem sections also provide food, eaten raw or cooked. This species supplies nopalitos, the edible stem sections valued in Mexico. Its role thus extends beyond that of a fruit crop. Growers plant it as a living fence and boundary marker. Its spiny growth forms a barrier along these boundaries. Manufacturers also use plant material in skin-care products. These ingredients help soften skin and hold moisture. The supplied account gives no species-specific medicinal evidence.

Handling this cactus poses a clear physical risk. Its tiny barbed spines, called glochids, break free on contact. They can lodge in skin and cause marked irritation. Their small size makes them hard to find and remove. Edible fruit and stems do not remove this handling hazard. The cited 2017 IUCN assessment lists the species as Least Concern. It reports a broad range and locally abundant populations.