rhus

/ rʊs /

noun

any shrub or small tree of the anacardiaceous genus Rhus , several species of which are cultivated as ornamentals for their foliage, which assumes brilliant colours in autumn See also sumach

Not many cases of internal poisoning by Rhus toxicodendron are on record in medical literature.

The true poison oak is the Rhus diversiloba of the Western States.

At least three poisonous species of the genus Rhus are found in the United States.

From a clinical study of Rhus poisoning, Pfaff came to the conclusion that the poison must be a non-volatile skin irritant.

The oil obtained by Pfaff from Rhus venenata seemed to be identical with that from Rhus toxicodendron.

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