THE TASTE of young poison oak is surprisingly mild, grassy and only a little bit tart. Two dozen glossy green-and-red leaves ...
How can you tell if you're dealing with poison oak or poison ivy? Both of these plants contain urushiol -- an oily compound ...
Leaves Are Beginning to Turn in coastal San Diego County’s riparian woodland and oak woodland habitats. The summer-green ...
poison ivy (toxicodendron radican), poison oak (toxicodendron quercifolium and toxicodendron diversilobum), and poison sumac (toxicodendron vernix), all of which are strong antigens, and require ...