Photo: Diane Edwardson, May 23, 2012. Nightshade's flowers are smaller than my pinkie fingernail. Nightshade (a species of Solanum) berries are black when ripe and extremely toxic. (Click on photo to enlarge.)
Disclaimer: The Corralitas Red Car Property Blog prefers to quote reliable sources, such as Calflora and California Poison Control, on the issue of toxicity. We often get email suggesting some plants are edible. If you are eating your way through the Red Car Property, we DO NOT recommend you eat any plant you find in the Red Car Property neighborhood without first doing your own research.