Eupatorium semiserratum

Distinguishing Features: leaves have the major lateral veins diverging from the very base; .

Habitat: open areas, old fields and waste places.

Geographic Distribution : diploid phase is restricted to coastal plain in northern Florida; apomictic polyploids are widespread in eastern U.S.

Similar Species: Eupatorium linearifolium (treated as a variety of E. semiserratum in some floras) has leaves in which the major veins diverge from the very base, and the floral parts are larger/smaller.

Molecular Data : samples of E. semiserratum (DNA #s ) differ in the ITS sequence from all other species by a minimum of x bp changes and y indel

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