Diane Renshaw
What a great tour, so many experts! Diane tells us about serpentine: formed under high pressure and *low* temperature, then squeezed up along the fault. Low in nutrients needed by many plants, especially European invaders; native plants had adapted. As time goes on, the "new" plants adapt, and the serpentine soil is fertilized by the nitrogen and other nutrients coming from our catalytic converters. Near Escobar Gate.