Eupatorium leptophyllum

Distinguishing Features: minute, wind pollinated heads, glabrous stems, recurved and secund flowering branches .

Habitat: pond margins and wet low places

Geographic Distribution : southeastern U.S., Alabama to North Carolina

Similar Species: Eupatorium capillifolium and E. compositifolium have pubescent stems and flowering branches that are not recurved and secund

Molecular Data : samples of E. leptophyllum (DNA #s ) are identical or nearly so to Eupatorium capillifolium and E. compositifolium ; these differ by a minimum of 1 indel and 12 bp from all other Eupatorium species.

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