Search results
Results from the WOW.Com Content Network
Phyllosticta concava, also known as opuntia dry rot [1] or prickly pear brown spot, is a species of fungus that infects opuntia cactus, leaving discolored circular depressions in the pads. [ 2 ] [ 3 ] The species was first formally described by the mycologist Fred Jay Seaver in 1922.
Opuntia, commonly called the prickly pear cactus, is a genus of flowering plants in the cactus family Cactaceae, many known for their flavorful fruit and showy flowers. [1] Cacti are well-adapted to aridity; however, they are still vulnerable to alterations in precipitation and temperature driven by climate change. [ 2 ]
Opuntioideae is a subfamily of the cactus family, Cactaceae.It contains 15 genera divided into five tribes.The subfamily encompasses roughly 220–250 species, and is geographically distributed throughout the New World from Canada, to Argentina. [3]
Opuntia guatemalensis is a low growing, spreading prickly pear, with pads that are 10–20 cm (4-8 inches) long. Areoles are light brown, or slightly tan, and raised. Spines are white-gray, being darker at the tip, and are present over 2/3 to 3/4 of an average pad. Large spines are partially perpendicular to the pad.
Opuntia ficus-indica, the Indian fig opuntia, fig opuntia, or prickly pear, is a species of cactus that has long been a domesticated crop plant grown in agricultural economies throughout arid and semiarid parts of the world. [3] O. ficus-indica is the most widespread and most commercially important cactus.
Opuntia microdasys forms a dense shrub 40–60 cm tall, occasionally more, composed of pad-like stems 6–15 cm long and 4–12 cm broad. Instead of spines it has numerous white or yellow glochids 2–3 mm long in dense clusters. They are barbed and thinner than the finest human hairs, detaching in large numbers upon the slightest touch.
Opuntia aurantiaca, commonly known as tiger-pear, jointed cactus or jointed prickly-pear, is a species of cactus from South America. [2] The species occurs naturally in Argentina , Paraguay and Uruguay and is considered an invasive species in Africa and Australia .
Opuntia galapageia is a species of cactus. It is endemic to the Galápagos Islands, part of Ecuador. Forms occurring on different islands have been treated as separate species and subtaxa of these species. Opuntia echios, Opuntia helleri, Opuntia insularis, Opuntia megasperma, Opuntia myriacantha and Opuntia saxicola are now sunk within O ...