Small, Manual of the Southeastern Flora 906, 1933
Opuntia nitens is small (3-ft tall or less, but often shorter), erect, and has dull-green or yellow-green cladodes. Spines are often single but there may be up to 4 per areole; they may be 1- to 1 1/2-inches long. Spines are brown when new and gray or dark-gray when aged. They can point straight out from the areoles in an attractive manner. The fruit is often reddish or red-purple; overall it is egg-shaped but can be narrow at the base. O. nitens is not rare in Florida, but it is not commonly found, being displaced by development and agriculture. It was described from specimens found on hammocks and shell mounts on the western side of the Halifax River in FL. Overall, this taxon is similar to O. austrina. Read the original description.