Nasa macrophylla
Image: Markus Ackermann (cc-by-nc)
NameNasa macrophylla
Scientific NameNasa macrophylla
Common NamesOrtiga Brava, Andean Stinging Nettle
Plant FamilyLoasaceae
Natural HabitatFound in humid montane forests, cloud forests, and disturbed areas of the high-altitude Andes in countries like Peru and Ecuador. It thrives in moist, shaded environments.
Parts Usedleaf,whole_plant
Medicinal Actionsanalgesic,anti-inflammatory
Traditional UsesTraditionally, the stinging leaves and stems of Nasa macrophylla are used in a practice similar to urtication to treat rheumatic pain, arthritis, and muscle aches by stimulating local circulation and providing counter-irritation. Crushed leaves may also be applied as a poultice for localized inflammation and pain.
Active Constituentshistamine, acetylcholine, serotonin, formic acid-like compounds
Preparation Methodspoultice
Contraindications & WarningsAvoid contact with open wounds or sensitive skin. Can cause severe skin irritation, redness, and blistering due to its stinging hairs. Not recommended for internal use without expert guidance due to potential toxicity and irritation.
Cultivation NotesRequires specific high-altitude, humid, and shaded conditions typical of Andean cloud forests, making it challenging to cultivate outside its native range. Propagated by seed or cuttings.
Rarityuncommon
Description
Nasa macrophylla is a robust herbaceous plant native to the Andean regions, characterized by large, often lobed leaves and stems densely covered with irritating stinging hairs. It produces distinctive pendulous flowers with prominent orange-pinkish outer bracts and white inner petals, housing numerous stamens.
