Mark Faint's Cactus Page Mark Faint's Cactus Page: Detailed information on Neolloydia, Notocactus, and Turbinicarpus. (Cactaceae) http://www.mfaint.demon.co.uk/cactus/
Description of Cactaceae Description of Cactaceae: Habit and leaf form; Anatomy; Morphology; Physiology; Biochemistry; Geography. (Cactaceae) http://biodiversity.uno.edu/delta/angio/www/cactacea.htm
Southwestern Cacti Southwestern Cacti: Information and photos for species native to the southwestern United States. (Cactaceae) http://www.whitethornhouse.com/cacti/cacti.htm
Keir's Botanical Photo Archive - Cactaceae Keir's Botanical Photo Archive - Cactaceae: Images from the US. (Cactaceae) http://www.keiriosity.com/cactaceae/cactaceae.html
Outdoor Cacti Photos Outdoor Cacti Photos: Photos of Opuntia, Echinocereus, and others, resources, and tips for growing and photographing them. (Cactaceae) http://www.xmission.com/~mbmiles/
The Cactaceae The Cactaceae: Description of the cactus family, with photos and short profiles of several representative species. (Cactaceae) http://www.botany.hawaii.edu/faculty/carr/cact.htm
Cacti Guide Cacti Guide: Images of many genera, mostly of small, planted specimens. (Cactaceae) http://cactiguide.com/
Peterocactus National Plant Collection Peterocactus National Plant Collection: List of the nine species, endemic to southwestern Argentina, with images and brief descriptions of four. (Cactaceae) http://www.manntaylor.com/ptero.html
Plants of the Cactaceae Family Plants of the Cactaceae Family: Large image gallery of cacti cultivated in Phoenix, Arizona. (Cactaceae) http://www.desert-tropicals.com/Plants/Cactaceae/
Cactus Museum Cactus Museum: Photos and notes for many species from a cactus grower in Tucson, Arizona. (Cactaceae) http://www.cactusmuseum.com/
Additional
Information: Canadian Content has no additional information.
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