FIGURE 13 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States

FIGURE 13. Morphological features of O. mesacantha subsp. mesacantha. A) holotype specimen of O. pollardii, C.L. Pollard 1138, Harrison Co., Mississippi (NY) showing typical characters of O. mesacantha subsp. mesacantha, B) growth form of O. mesacantha subsp. mesacantha from Jackson Co., Mississippi (Majure 1921), C-E) cladode and spine production variation in O. mesacantha subsp. mesacantha, F) flower and G) fruit of O. mesacantha subsp. mesacantha. C from Harrison Co., Mississippi (Majure 1603), D from Winston Co., Mississippi (Majure 769), E-G from Forrest Co., Mississippi (Majure 806). Photos C & F taken by M. Pajuelo; all other photos taken by L.C. Majure.