Engelmann Pricklypear

Salm-Dyck ex Engelmann, Boston Journal of Natural History 6(2): 207, 1850 Lectotype; Isotype (of O. gregoriana); Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium; Herbarium (as O. gregoriana); Herbarium (as O. gregoriana) See O. lindheimeri See checklist of differences between O. lindheimeri and O. engelmannii Original Description What is […]