Loasa multifida
NameLoasa multifida
Scientific NameLoasa multifida
Common NamesOrtiga Brava, Chilean Nettle, Loasa
Plant FamilyLoasaceae
Natural HabitatNative to South America, particularly Chile and Peru, thriving in arid to semi-arid regions, often found in disturbed soils, roadsides, and open fields.
Parts Usedwhole_plant,leaf
Medicinal Actionsanalgesic,anti-inflammatory
Traditional UsesTraditionally, the fresh plant is applied directly to the skin to induce a stinging sensation, acting as a counter-irritant for rheumatic pain, arthritis, lumbago, and muscle aches. This method is similar to 'urtication' with true nettles.
Active Constituentshistamine, acetylcholine, serotonin, bradykinin
Preparation Methodspoultice
Contraindications & WarningsAvoid internal consumption due to potential toxicity. Direct skin contact causes intense stinging and irritation; avoid contact with eyes and mucous membranes. Not recommended for individuals with sensitive skin or allergies to stinging plants.
Cultivation NotesPrefers full sun and well-drained, often poor soils. It is drought-tolerant and can self-seed readily, sometimes becoming weedy in suitable climates.
Raritycommon
Description
An annual or perennial herb characterized by its stinging hairs covering stems and deeply lobed leaves. It produces striking yellow flowers with a complex, often reddish-brown or maroon center, giving it a unique appearance.
