Cacti and Desert Flora of the Great Southwest

Again, May 22 is the International Day for Biological Diversity. Postcard US-3971360 to Japan shows various cacti and desert flora of the Great Southwest.

USPS issued the Sonoran Desert sheet in Tucson, Arizona on April 6, 1999 that contained ten 33¢ stamps. It was the first of twelve self-adhesive stamp sheets Nature of America that USPS released annually between 1999 and 2010.

America the Beautiful -- Sonora Desert

The second postal card in the America the Beautiful series was issued January 13, 1989 in Tucson, Arizona. The design features an eagle soaring over the Sonora Desert in the golden glow of sunset. The 15-cent stamped card was the first philatelic item of 1989 by USPS.