My Gall Friday
My Gall Friday
Friday, May 29, 2026
2:00 AM — 5:00 AM
Los Trancos Open Space Preserve
Los Trancos Open Space Preserve, Los Altos, CA, 94022
About
Midpen guided activities are led by trained volunteer docent naturalists. All are welcome. Witches’ brooms, oak apples, redwood burls, and stem fasciations—do you know what these are and how they are formed? Welcome to the huge and fascinating world of plant galls and other abnormal growth patterns. Come out with Docent Naturalists Frances Reneau and Helena Cohen on this leisurely-paced exploration along the Page Mill and Lost Creek Loop trails to learn how to spot spined turbans, red cones, pink bowties, and yellow wigs hiding in plain sight on some of your favorite plants. Bring a loupe if you have one. Reservations are required and will be accepted on or after May 15 at 12:00 p.m. (Noon) and close May 28 at 2:00 p.m. [Eventbrite tags: Hiking, Travel & Outdoor, Other]
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