Botany Blitz

Whiting Ranch Wilderness Park

Sunday April 16


Join us for a day of botanizing with renowned botanists! All skill levels are invited to participate and make a difference.

Volunteers will join the chapter’s Whiting Ranch Park Vascular Plant Checklist team in a one-day Botanical Blitz of the entire 2,500 acre park.

Participants will be divided into teams, each lead by an expert field botanist, including Bob Allen, Rebecca Crowe, Emile Fiesler, Sandy Leatherman, Fred Roberts, Michael Simpson, and Ron Vanderhoff. Using the iNaturalist application, each team will survey a different area of the park, documenting as many plant species as possible during the day. Results from the day will contribute to the official checklist, The Vascular Plants of Whiting Ranch Wilderness Park, a multi-year project of the UC Irvine Herbarium, with support from OCCNPS. This is the second county park in an ongoing project. All skill levels are invited to participate.


1. More information and the registration form (PDF) are obtained by clicking here.

2. Sign the Participant Waiver by clicking here. 

3. Complete the registration form obtained in step 1 and send it to our Botany Blitz team as indicated in the info/reg form.


Cactus Wren on Cactus Flower


Whiting Ranch