Eupatorium mohrii

Eupatorium mohrii, commonly called Mohr's thoroughwort, is a herbaceous perennial plant in Asteraceae native to the southeastern and south-central states of the United States, in the coastal plain from Virginia to Texas.[3] It has also been found in the Dominican Republic.[4]

Eupatorium mohrii
St. Joseph Peninsula State Park, Florida

Apparently Secure  (NatureServe)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Eupatorium
Species:
E. mohrii
Binomial name
Eupatorium mohrii
Synonyms[2]
  • Eupatorium recurvans Small
  • Uncasia mohrii (Greene) Greene
  • Eupatorium quinqueflorum Urb. & Ekman

Eupatorium mohrii is a perennial herb up to 100 cm (40 inches) tall and are producing tuberous rhizomes. As with other species of Eupatorium, the inflorescences contain a large number of tiny white flower heads, each with 5 disc florets but no ray florets. It forms hybrids with Eupatorium serotinum and Eupatorium rotundifolium.[3]

Eupatorium mohrii grows in moist areas, edges of ponds, and sandy soils.[3]

References
  1. "Eupatorium mohrii". NatureServe Explorer. NatureServe. Retrieved 2010-09-12.
  2. The Plant List, Eupatorium mohrii Greene
  3. "Eupatorium mohrii". Flora of North America.
  4. Sullivan (1983). "Eupatorium mohrii, a new record for the Dominican Republic, including E. quinqueflorum, syn. nov. (Asteraceae)". Sida. 10 (1): 37–40.


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