Leaves of poison sumac have 7-13 leaflets, and of Lacquer Tree, 7-19 leaflets.
From the en.wikipedia.org
Such plants include poison oak, poison ivy, poison sumac, milkweed, and stinging nettles.
From the en.wikipedia.org
Poison sumac doesn't appear to grow in Missouri, although it's found in some places in Illinois.
From the stltoday.com
Poison sumac is a shrub or small tree with an upright growth habit and produces a grayish-white fruit in fall.
From the post-gazette.com
This advice doesn't just apply to poison ivy, but to other plants, such as poison oak and poison sumac, as well.
From the stltoday.com
The plants grow as creeping vines, climbing vines, shrubs, or, in the case of lacquer tree and poison sumac, as trees.
From the en.wikipedia.org
Pharmacies have an array of poison ivy-oak-sumac remedies that reduce itching.
From the stltoday.com
They state unequivocally that a poison ivy rash results from skin exposure to urushiol, the sticky, irritating oil from poison ivy, poison oak and poison sumac plants.
From the orlandosentinel.com
Another non-food protein reaction, urushiol-induced contact dermatitis, originates after contact with poison ivy, eastern poison oak, western poison oak, or poison sumac.