Most Sonoran Desert cacti bloom in spring, but fishhook barrel (Ferocactus wislizeni) flowers during late summer. 1998 was a wet summer and the desert was very green by August. See also AZUTucsonMts37

Retrieved from the Arizona-Sonora Desert Museum web site on 04-26-2024
https://www.desertmuseum.org/desert/habitats_AZUTucsonMts10a.php