


Poison oak (and ivy and sumac) causes an allergic skin rash on contact. It grows as a dense shrub in open sunlight, or as a climbing vine in shaded areas. It appears everywhere in the west. The toxin is called urushiol; the name comes from the Japanese word urushi, which denotes a lacquer produced from the sap of kiurushi trees (Lacquer Tree). 1/4 ounce of urushiol is all that is needed to cause a rash in every person on earth.We have it. It's seasonally beautiful, always toxic and we try to remove as much as possible. The big limbs are from a particularly huge growth. That's me in full protective gear carrying the base of a three-stemmed vine of it, and the chipper with poison oak (only) chips around it.




