poison sumac definition

  • noun:
    • A shrub (Toxicodendron vernix syn. Rhus vernix) typically of swampy habitats in east the united states, having element leaves and greenish-white fruits and causing an itching rash on experience of the skin.
    • A skin rash caused by experience of this plant.
    • A woody shrub or tiny tree, all parts of which cause discomfort to people; Rhus vernix or Toxicodendron vernix.
    • a poisonous shrub previously regarded as being of genus Rhus (Rhus venenata), however now classified as Toxicodendron vernix; -- also referred to as poison ash, poison dogwood, and poison elder. It offers pinnate leaves on graceful and thin common petioles, and often grows in swampy locations. Both this plant additionally the poison ivy (Toxicodendron radicans, formerly Rhus Toxicodendron) have clusters of smooth greenish white fruits, even though the red-fruited types of this genus are benign. The tree (Rhus vernicifera) which yields the celebrated Japan lacquer is nearly identical using the poison sumac, and it is very poisonous. The juice of poison sumac additionally types a lacquer like Japan.
    • View under Poison.
    • A small good looking tree, Rhus venenata, of swamp-borders in eastern North America.
    • dermatitis caused by contact with a poison sumac plant
    • smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil

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