Opuntia pusilla

Familia: Cactaceae
Subfamilia: Opuntioideae
Tribus: Opuntieae
Genus: Opuntia
Species Opuntia pusilla

Opuntia pusilla (Haw.) Haw., Syn. Pl. Succ. 195. (1812)

• Neotype: Pfeiffer & Otto, Abbild. Beschr. Cact. 1: pl. 18. 1840, vide Benson (1982).

• Basionym
  • Cactus pusillus Haw., Misc. Nat. 188. (1803)
• Homotypic
  • Opuntia pusilla Salm-Dyck, Observ. Bot. Horto Dyck. [3]: 10. (1822) nom. illeg. hom.
  • Tephrocactus pusillus (Haw.) Lem., Cactées: 88. (1868)
• Heterotypic
  • Cactus pusillus DC., Cat. Pl. Horti Monsp.: 184. (1813) nom. illeg. hom.
    • Cactus pusillus (DC.) Kuntze, Revis. Gen. Pl. 1: 261. (1891) nom. illeg. hom.
  • Cactus foliosus Willd., Enum. Pl., Suppl. 35. (1814)
  • Opuntia foliosa (Willd.) Salm-Dyck ex DC., Prodr. 3: 471. (1828)
    

Note: Although Benson (1982) used this name to refer to southeastern United States plants, the original description and neotype are ambiguous. It is clearly not a taxon from the southeastern United States and may be a South American plant. Opuntia drummondii Graham in Maund, Botanist 5: pl. 246. (1846) is preferred for the southeastern United States species (Majure, 2021).

• Benson, L.D. 1982. Cacti U.S. Canada 922-923.
• eFloras 2008. Opuntia pusilla in Flora of North America. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
• Haworth, A.H. 1812. Syn. Pl. Succ. 195.
• International Plant Names Index. 2021. Opuntia pusilla. Published online. Accessed: Nov. 30 2021.
• Korotkova, N. et al. 2021. Opuntia pusilla in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Nov. 30. Reference page.  as a name of uncertain application.
• Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 2021. Cactaceae at Caryophyllales. org–a dynamic online species-level taxonomic backbone for the family. Willdenowia 51(2): 251–270. DOI: 10.3372/wi.51.51208 Reference page. 
• Tropicos.org 2021. Opuntia pusilla. Missouri Botanical Garden. Published online. Accessed: 30 Nov. 2021.
• Wunderlin, R.P. & Hansen, B.F. 2008. Opuntia pusilla in Atlas of Florida Vascular Plants. Institute for Systematic Botany, University of South Florida, Tampa. Published online. Accessed: 2015 Apr 23.