One such plant is poison sumac, a deciduous, woody shrub or small tree. Poison sumac (Toxicodendron ... more allergenic than poison ivy and poison oak, which are other well-known plants in the ...

Is that shrub poison oak? We’ve also seen the Batman movies ... a poison sumac shrub (or small tree) will grow from about five to 20 feet tall. Furthermore, poison sumac shrubs are less dense ...