



Are any of these poison ivy or oak?
San Francisco hike, I think a lot have thorns so I assume not but I don’t understand how to tell what is considered a cluster of three vs not? Every plant looks like it has 3 leaves!
u/GiantP1umCake — 4 days ago




San Francisco hike, I think a lot have thorns so I assume not but I don’t understand how to tell what is considered a cluster of three vs not? Every plant looks like it has 3 leaves!