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Eupatorium semiserratum
Eupatorium semiserratum, commonly called smallflower thoroughwort, is a North American plant species in the family Asteraceae. It is native to the southeastern and south-central United States, found in all the coastal states from Maryland to Texas and inland as far as Missouri and Kentucky.
Eupatorium semiserratum stems sometimes more than 100 cm (40 inches) tall and are produced from short rhizomes. The inflorescences, which can be present from late July-October, are composed of a large number of small white flower heads with 5 disc florets but no ray florets. This species is similar to Eupatorium linearifolium but has smaller heads of flowers and stems which branch near the tips rather than near the base. The plants previously known as Eupatorium glaucescens or Eupatorium cuneifolium are now classified as E. semiserratum or E. linearifolium.
Eupatorium semiserratum is found the southeastern United States, from southeast Virginia south to northern Florida, west to Texas and Arkansas, with a disjunct population found in Tennessee.
E. semiserratum has anticancer properties against various human cancer cell lines.
White thoroughwort · Tall thoroughwort · Eupatorium amabile · Florida thoroughwort · Eupatorium benguetense · Eupatorium camiguinense · Hemp-agrimony · Dogfennel · Eupatorium chinense · Yankeeweed · Ground Qalanis · Chinese Eupatorium
Text excerpted from the Wikipedia article Eupatorium semiserratum by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
