Brickelliastrum

Brickelliastrum is a North American genus of flowering plants in the tribe Eupatorieae within the family Asteraceae.^[2][3] Its species are native to Arizona, New Mexico, and Texas in the United States and to northern Mexico.^[1]

Brickelliastrum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Eupatorieae
Genus:	Brickelliastrum R.M.King & H.Rob.[1]

Brickelliastrum has at times been lumped with Brickellia or Steviopsis, but chromosome number (x=10) and molecular data are in agreement in showing that it is distinct from either of these.^[4] Despite having the general appearance of Brickellia, members of Brickelliastrum have cypselae that have only 5-7 ribs (vs. 10), funnel-shaped corollas, and a style with an unenlarged, glabrous base.

Species

As of May 2024^[update], Plants of the World Online accepted two species:^[1]

• Brickelliastrum fendleri (A.Gray) R.M.King & H.Rob.
• Brickelliastrum nesomii (B.L.Turner) R.M.King & H.Rob., syns. Brickelliastrum villarrealii, Steviopsis nesomii B.L.Turner