DownloadDescription: A round, long-spined cactus with mountains in the background, in Death Valley California.
DownloadDescription: A cactus with round flat spiny lobes, growing in the botanical gardens in Mendocino California. Around the base of the large cactus a number of smaller cacti are growing.
DownloadDescription: A young sajuaro cactus in the high Mojave desert in western Arizona. The cactus is short and round, with no arms growing from its main stem.
DownloadDescription: A bush growing at the bottom of Ubehebe Crater, in Death Valley California, with the rim of the crater in the background.
DownloadDescription: A sajuaro cactus standing among several others in the background. The lower part of the main stem of the cactus is dry and brown, and there is a small hole in the stem. Around the base of the cactus grows thick green brush. In the high Mojave desert of western Arizona.
DownloadDescription: A mature sajuaro cactus with several arms, seen against a pale blue sky, growing in dense underbrush. In the high Mojave desert of western Arizona.
DownloadDescription: Several sajuaro cacti growing on a hill in the high desert of western Arizona. Around cacti low green brush grows.
DownloadDescription: Closeup shot of a red and pink cactus flower, with the cactus in the background. This picture was submitted by Rickard Olsson, and is used with permission.