Eupatorium mohrii

Eupatorium mohrii, commonly called Mohr's thoroughwort, is a herbaceous perennial plant in the family 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
Conservation status
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 Greene
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]