Arizona is home to many precious animals and plants that make the state unique. However, some of these animals may need help to continue to live in the Grand Canyon State. Arizona is home to 75 ...

buiningii is threatened because of overcollection for international trade. The cage of thorns combined with soft-looking tufts in this cultivated Echinocactus horizonthalonius expresses toughness and ...

Environmental policy aims to conserve natural resources by balancing environmental protection with economic growth, property rights, public health, and energy production. This is done mainly through ...

Easy to grow and enjoying a revival, cacti are spiky succulents that thrive on a sunny windowsill. Popular in the early decades of the 20th century, when there was a move away from all things ...

A line drawing of the Internet Archive headquarters building façade. An illustration of a magnifying glass. An illustration of a magnifying glass.

Around six species of barrel cacti, including the golden barrel cacti, are included in the genus Echinocactus and are indigenous to Mexico and the southwestern United States. Over 30 distinct species ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Golden barrel cactus (Echinocactus grusonii) is a good-looking and colorful plant. These cacti are perfectly round when young but elongate as they mature, taking on the barrel shape for which ...

Their acquisitions include San Pedro cactus (Trichocereus pachanoi), Mexican fence post (Pachycereus marginatus), barrel cactus (Echinocactus grusonii), prickly pear (Opuntia ficus-indica), and ...