Poison Sumac

Poison Sumac

Toxicodendron vernix


Rhus vernix, Thunderwood

ID Characteristics

Life cycle: Perennial
Growth Habit: Woody shrub or tree. All parts of the plant contain a poisonous resin
Leaf Margin: Entire, wavy
Leaf Hairs: Nearly hairless to a slight pubescence on the underside of the leaves. Stems are hairless.
Leaf Structure: Reddish pinnate leaf with 7-13 oblong leaflets that taper to a point.
Leaf Arrangement: Alternate
Root Type:
Flower Color: Green clusters at the leaf axils


Similar Species

  • Ash Fraxinus spp.
  • Poison Oak Toxicodendron diversiloba or Rhus diversiloba
  • Sumac Rhus spp.
  • Tree of Heaven Ailanthus altissima
  • Trumpet-creeper Campsis radicans

Herbicidal Control Options

  • Preemergence: herbicidal control products here
  • Post Emergence: herbicidal control products here

Please note: one or more of these active ingredients may exist in combination-type brand name products. Any material used for herbicidal control of any plant may vary in efficacy. Please read the full disclaimer on herbicide usage.