Opuntia whitneyana is now considered O.basilaris, following Benson's treatment of the species. It is a distinct plant, easily distinguished by bulging glochids. In cultivation it forms bluish waxy cover on younger pads, giving the plants even more distinct look.
This picture is taken at type locality of O.whitneyana, at Alabama Hills in California. This form has limited distribution, occurring only at Sierra foothills as high as 10000ft and nearby White Mountains. Also this plant is found at slopes above Lake Isabella.
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