Opuntia humifusa var. austrina (Small) Dress in Baileya 19(4): 164. 1975 Opuntia humifusa var. austrina (Small) Dress in Baileya 19(4): 164. 1975is new combination for Opuntia austrina Small in Fl. S.E. U.S.: 816, 1335. 1903Taxon for this nameOpuntia humifusa var. austrina (Small) Dress