I've removed the degree symbols from the parent plant and replaced them with the word "degrees." Next time the system corrects itself, that information will be added to all of the opuntias.
Baja's correct, Lin. Our system can't recognize nonstandard characters. That's why we shouldn't use foreign diacritical marks in our common names and cultivar names except in the also-sold-as field. When the system can't recognize a character, the cultivar is often misalphabetized.