The City of Los Angeles' Protected Native Tree Ordinance includes Black Walnuts with trunk diameters as small as 2." Its intent was to protect dwindling native habitat in Hillside areas, as the trees are vital to native urban wildlife. They also thrive with just the small amount of rain (7.55") as we had this year.
Click here for the City's Protected Native Tree Ordinance 177,404
There's not much meat to the Black Walnuts but the squirrels sure like them. CalFlora & California Poison Control list the toxicity risk as "dermatitis."
Click here for our neighborhood's native plants.
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.