Poison-oak

Poison-oak (Toxicodendron diversilobum) is quite a nasty plant – it grows in abundance in wet and shady areas, and the allergic reactions it causes certainly make it “hikers foe”. Nevertheless, it can be quite beautiful – in spring, it’s leaves are of a vivid, bright green, in late summer and early autumn they turn to a glowing red (making it most easy to spot it). It’s most dangerous in winter, when the bare twigs sticking out of the ground are hardly recognizable as Poison-oak at all.


Los Penasquitos Canyon Preserve has a spectacular array of Poison-oak, especially the vines that grow next to the trees and entangle them are of an incredible size and must be very old – some of them are as thick as a human arm, or even leg, almost tree-like themselves. I made these photos there, on an overcast August morning.

Stay up to date with my blogposts and subscribe via email. It’s easy and you’ll never receive more than one post per day.


All images and content © by Alexander S. Kunz, unless otherwise noted. No re-use without express written permission. Most images are available as prints and for commercial licensing. Please contact me if you’re interested. Prints and licensed images are NOT watermarked, of course.

Strictly non-commercial usage (ie. no monetization through ads, referral systems etc.) on private blogs and websites is allowed if proper credit and a back-link are provided in the form of “Photo by Alexander S. Kunz – www.alex-kunz.com“. Thanks!

Leave a Reply