Opuntia engelmannii var. laevis
Opuntia engelmannii var. laevis in Phytoneuron 2017-48: 1. 2017 sec. Felger & al. 20171
- ≡Opuntia laevis in Contr. U.S. Natl. Herb. 3(7): 419. 1896 syn. sec. Felger & al. 20171
- ≡Opuntia phaeacantha var. laevis, Cacti Ariz., ed. 3: 21. 1969 syn. sec. Parfitt & Gibson 20032
- 1. Felger, R.S., Hawkins, J. A., Verrier, J. & Carnahan, S.D. 2017: New combinations for Sonoran Desert plants. – Phytoneuron 2017-48: 1-6, 2. Parfitt, B.D. & Gibson, A.C. 2003: Cactaceae. – In: Flora of North America Editorial Committee, Flora of North America 4. Magnoliophyta: Caryophyllidae, part 1