[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address Please contact the publisher to request reinstatement.
[Skip to Content Landing]
September 1974

Contact Dermatitis From Tagetes minuta: A New Sensitizing Plant of the Compositae Family

Arch Dermatol. 1974;110(3):441-444. doi:10.1001/archderm.1974.01630090075019

Tagetes minuta (Mexican marigold), a common weed in south eastern Africa and subtropical America has a vesicant primary irritant effect on intact skin and can cause severe and prolonged allergic contact dermatitis, with cross-sensitization to other Compositae plants. This is demonstrated with patch tests using fresh plants and with diluted extracts in three sensitive patients and in 43 controls. Tagetes minuta also has several other noxious effects on mammals and insects. Its action on human skin, including sensitization, is similar to that of the closely related genus Helenium.