Opuntia Miller (1754)
(Greek "opos" = figs sap)
Because of the figs similar fruits or a combination of the Aztec name "nopali" (Spain "nopal" = Opuntia) and
(Latin "pungere" = prick) Prickly Pear.
By the natives as Tuna mentioned. In the 16th century by the Spanish imported and escaped to the climatic favorable Mediterranean region.
The Greek scholar Plinius designated a plant as Opuntia which occurred near the Greek town Opunet.
Curiously enough prevailed the name of the escaped Tuna, it became recognized as genus name later.
tree-like or shrubby, pads flat circular, also dwarf forms with globular pads; spines very different in number, lenght and color
flowers wide opening, mostly on the upper pad edge, yellow, whiteish-yellow, orange or shades of red
fruits large, firgs similar shaped, color different, partly eatable, partly used as fodder; seeds large, broad circular, flat