Eupatorium leucolepis

Eupatorium leucolepis, commonly called justiceweed or white-bracted thoroughwort, is a herbaceous perennial plant in Asteraceae native from the eastern coastal United States, from New York to eastern Texas, with scattered populations inland as far as Kentucky and West Virginia.[3]

Justiceweed

Secure  (NatureServe)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Eupatorium
Species:
E. leucolepis
Binomial name
Eupatorium leucolepis
Synonyms[2]
  • Eupatorium glaucescens var. leucolepis DC.
  • Uncasia leucolepis (Torr. & A.Gray) Greene

Eupatorium paludicola and Eupatorium novae-angliae

Eupatorium paludicola consists of diploids from clay soils of North Carolina and South Carolina. Until the early 21st century, they were classified in E. leucolepis. Eupatorium novae-angliae, known from a dozen or so sites in Massachusetts and Rhode Island, is a hybrid-derived allopolyploid of Eupatorium paludicola and Eupatorium perfoliatum. In the past it was known as E. leucolepis var. novae-angliae but, like E. paludicola, it does not appear to be closely related to E. leucolepis.[4][3][5]

It is self-sustaining, rather than being found only where both parents are present, so various authors since 1992 have proposed treating it as a distinct species.[6]

References
  1. "Eupatorium leucolepis". NatureServe Explorer. NatureServe. Retrieved 2010-09-12.
  2. The Plant List, Eupatorium leucolepis (DC.) Torr. & A. Gray
  3. "Eupatorium leucolepis". Flora of North America.
  4. Schilling, Edward E.; Leblond, Richard J.; Sorrie, Bruce A.; Weakley, Alan S. (2007). "Relationships Of The New England Boneset, Eupatorium Novae-Angliae (Asteraceae)". Rhodora. 109 (938): 145. doi:10.3119/0035-4902(2007)109[145:ROTNEB]2.0.CO;2.
  5. "Eupatorium leucolepis var. novae-angliae Fern., Taxonomic Serial number 528112". Integrated Taxonomic Information System.
  6. Ted Elliman (2001). "Eupatorium leucolepis (DC.) T. & G. var. novae-angliae Fern.: New England Boneset Conservation and Research Plan for New England" (PDF). New England Wild Flower Society. Archived from the original (PDF) on 2006-10-02. Retrieved 2008-12-30.


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