Eupatorium anomalum

Eupatorium anomalum, commonly called Florida thoroughwort,[3] is a North American species in the family Asteraceae. It grows in the southeastern United States from Alabama to Virginia.[4] Molecular investigations suggest that it originated as a hybrid between E. serotinum and E. mohrii but it is well-established on its own as a distinct species.[3]

Eupatorium anomalum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Eupatorium
Species:
E. anomalum
Binomial name
Eupatorium anomalum
Synonyms[1][2]
  • Eupatorium × anomalum Nash
  • Uncasia anomala (Nash) Greene

Eupatorium anomalum is a tall perennial sometimes over 150 cm (5 feet) tall, producing tuberous rhizomes. It has opposite, egg -shaped leaves, and flat-topped arrays of a large number of tiny flower heads. Each head has 5 white disc florets but no ray florets.[3][5]

References
  1. The Plant List, Eupatorium anomalum Nash
  2. Tropicos search for Eupatorium anomalum
  3. Flora of North America, Eupatorium anomalum Nash, 1896. Florida thoroughwort
  4. Biota of North America Program 2014 county distribution map
  5. Nash, George Valentine 1896. Bulletin of the Torrey Botanical Club 23(3): 106
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