Eupatorium compositifolium
Encyclopedia
Eupatorium compositifolium commonly called Yankeeweed is a herbaceous perennial plant in Asteraceae
native from North Carolina to Florida, west to Texas. Like other members of the genus Eupatorium
it has inflorescence
s containing a large number of white flowers with disc florets and no ray florets, and is 0.5 to 2 meters tall.
It is closely related to Eupatorium capillifolium
and Eupatorium leptophyllum
and some authors consider all of them to be varieties of E. capillifolium. However, E. compositifolium is not as tall as E. capillifolium and is found in dryer areas.
Because it is not grazed by livestock, and mostly not eaten by wildlife, it is considered undesirable in places like pastures and controlled by means such as herbicides.
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
native from North Carolina to Florida, west to Texas. Like other members of the genus Eupatorium
Eupatorium
Eupatorium is a genus of flowering plants in the aster family, Asteraceae, containing from 36 to 60 species depending on the classification system. Most are herbaceous perennial plants growing to 0.5–3 m tall. A few are shrubs. The genus is native to temperate regions of the Northern Hemisphere....
it has inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
s containing a large number of white flowers with disc florets and no ray florets, and is 0.5 to 2 meters tall.
It is closely related to Eupatorium capillifolium
Eupatorium capillifolium
Eupatorium capillifolium is a perennial herbaceous plant in the family Asteraceae, native to southeastern North America. It is generally between 50 cm and 2 meters tall with several stems that fork from a substantial base. The stems and base are covered in leaves so dissected that they...
and Eupatorium leptophyllum
Eupatorium leptophyllum
Eupatorium leptophyllum, commonly called False fennel, is a herbaceous perennial plant in Asteraceae native to the southeastern United States. Like other members of the genus Eupatorium, it is about one to two meters tall and has inflorescences containing a large number of white flowers with disc...
and some authors consider all of them to be varieties of E. capillifolium. However, E. compositifolium is not as tall as E. capillifolium and is found in dryer areas.
Because it is not grazed by livestock, and mostly not eaten by wildlife, it is considered undesirable in places like pastures and controlled by means such as herbicides.