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Eupatorium semiserratum facts for kids

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Quick facts for kids
Smallflower thoroughwort
Conservation status

Secure (NatureServe)
Scientific classification
  • Eupatorium cuneifolium var. semiserratum (DC.) Fernald & Griscom
  • Uncasia semiserrata (DC.) Greene
  • Eupatorium parviflorum Elliott 1823 not Aubl. 1775

Eupatorium semiserratum, commonly called smallflower thoroughwort, is a North American plant species in the sunflower family. 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 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.

Another related species is Eupatorium lancifolium, which is found in Alabama, Arkansas, Louisiana, and Texas, and which has sometimes been classified as part of E. semiserratum.

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Eupatorium semiserratum Facts for Kids. Kiddle Encyclopedia.