The oblong, pale green, lightly pubescent, spiny joints, reach up to 7 inches in length and have 3 to 12 yellow or brown reflexed spines extending from large white areoles with yellow glochids....

The yellow-green, oval-elongated, flattened joints, reach up to 5 1/2 inches in length and have 5 to 8 yellow spines up to 1 inch extending from multiple white areoles, while yellow-brown gloch...

The oval, hairy, yellow-green joints reach up to 5 inches in length and have multiple yellow areoles and tufted yellow glochids. In summer the large greenish-yellow flowers are borne singly and...

The green, branching, long and slender stem has cylidrical joints reaching between 2 and 8 inches in length. Two or more spines of yellow extend up to an inch from small areoles. In summer the ...

The green fleshy pads, reaching up to 3 inches long, tend to cross over each other in growth pattern. Plenty of yellow glochids cover areoles at about 1 inch apart. The spines are awl shaped an...

The fleshy pads enlarge at the center to form the trunk of this green cactus. In summer the yellow flowers are borne singly on the edge of the pads and then produce often edible fruit. In summe...

This fleshy pad-forming green cactus has bristled tufts guarding its body. In summer the orange flowers are borne singly on the edge of the pads, then produce small purple fruits. This genus ha...

The small, roundish, heavily spined, green joints have brown spines with white tips. In summer the large flowers are borne singly and then produce fruit. The large, pale yellow flowers have red...

The obovate, glabrous, grass-green joints reach up to 6 inches in length and have multiple dark yellow areoles. In summer the large yellow flowers are borne singly and then produce red, dry fru...

The oval or oval-elongated, pubescent, yellow-green joints reach up to 6 inches in length and have thickly set round areoles whith golden yellow tufted glochids. In summer the large pale yellow...