This name is a synonym of Opuntia engelmannii var. engelmannii by Caryophyllales.
The record derives from Caryophyllales.org (data supplied on 2021-06-30) which reports it as a synonym of Opuntia engelmannii var. engelmannii (record 6b45be13-74cf-4c9a-b3e3-7f6630914939 )