Stinging Loasa
NameStinging Loasa
Scientific NameNasa chenopodiifolia
Common NamesStinging Loasa, Ortiga Brava
Plant FamilyLoasaceae
Natural HabitatFound in disturbed areas, rocky slopes, roadsides, and agricultural fields in the Andean regions of Peru, Bolivia, and Chile, often at higher altitudes.
Parts Usedleaf,whole_plant
Medicinal Actionsanalgesic,anti-inflammatory
Traditional UsesTraditionally used in Andean folk medicine, primarily externally, for treating rheumatic pain, muscle aches, and localized inflammation. It is often applied as a counter-irritant to draw pain away from deeper tissues.
Active ConstituentsFlavonoids, Triterpenes
Preparation Methodsinfusion,poultice,decoction
Contraindications & WarningsDirect contact with the fresh plant causes severe skin irritation (stinging, itching, burning) due to its glochids. Internal use is not well-studied and should be avoided without expert supervision. Not recommended for pregnant or nursing individuals, or young children.
Cultivation NotesThrives in well-drained soils and prefers full sun to partial shade. It is often considered a weed in its native habitat due to its vigorous growth and stinging properties. Propagated by seed.
Raritycommon
Description
An herbaceous plant native to the Andes, characterized by its prominent stinging hairs on stems and leaves. It produces star-shaped white or yellowish-white flowers with a distinctive yellow central corona, and lobed leaves.
