Ruellia asperula (syn. Stephanophysum asperulum Mart. & Nees) is a medicinal plant native to Brazil and growing in Caatinga vegetation and Cerrado vegetation. Flowers, leaves, and roots of this plant are usually macerated and used to treat asthma, bronchitis, fever, flu, and uteral inflammation.

Ruellia asperula
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Acanthaceae
Genus:	Ruellia
Species:	R. asperula
Binomial name
Ruellia asperula Benth. & Hook.f.

External links

• Floral Traits and Pollination Systems in the Caatinga, a Brazilian Tropical Dry Forest by Isabel Cristina Machado and Ariadna Valentina Lopes
• Ruellia asperula
• (in Portuguese) Ruellia asperula

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