Sonoran Desert Naturalist >>> Field Guide >>> Sonoran Desert Flora >>> Solanaceae >>> Datura discolor
Photographed near Painted Rock Mountain, Maricopa Co., Arizona. Nov. 2, 2008.
Fruit of Datura discolor has stout spines. Photographed in Rainbow Valley, Maricopa Co., Arizona. Sept. 12, 2009.
FLOWERS: Large, tubular white flowers, about
15 cm long, with center shaded violet or purple. Opening at night
and fading the following morning under hot sun. Blooms late spring and summer
depending on rainfall. The sepals below the flower are strongly angled or
The day the plant at upper left was photographed near Gila Bend, Arizona, the area was inundated with an abundance of grasshoppers of several species. The leaves are visibly insect-chewed, but mostly intact and functionally photosynthetic. It seems that the suite of toxic phytochemicals have protected the plant against excessive herbivory. These plants are also toxic to vertebrates including humans.
Solanaceae -- Nightshade Family
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