Find the word definition

Wikipedia
Roldana

Roldana also known as groundsel is a genus of large herbs or sub shrubs from the tribe groundsel tribe within the sunflower family.

Most if not all of its members used to be members of a related genus, Senecio. The species which are native to Southwest United States, Mexico and Central America and naturalized elsewhere.

Species formerly included

several species now regarded as better suited to other genera: Senecio Trixis