Loasa sclareifolia
NameLoasa sclareifolia
Scientific NameLoasa sclareifolia
Common NamesOrtiga brava, Chilean Nettle
Plant FamilyLoasaceae
Natural HabitatNative to Chile and Peru, it typically grows in dry, rocky areas, roadsides, and disturbed ground, often found at moderate altitudes in its South American range.
Parts Usedwhole_plant,leaf
Medicinal Actionsanalgesic,diuretic
Traditional UsesTraditionally, *Loasa sclareifolia* (and related 'Ortiga brava' species) has been used externally as a counter-irritant for rheumatic pain, arthritis, and muscle aches. Some indigenous practices also employed it internally as a diuretic, though this use requires extreme caution due to its irritant nature.
Active Constituentsglochids, irritating compounds
Preparation Methodspoultice,infusion,decoction
Contraindications & WarningsDirect skin contact with the plant's stinging hairs causes severe irritation, pain, and redness. Internal use is not recommended without expert guidance due to potential toxicity and lack of comprehensive safety data, especially for pregnant or nursing individuals and children.
Cultivation NotesThis annual or biennial plant prefers full sun to partial shade and well-drained soil. It can be grown from seed, but extreme caution, including wearing protective gloves, is necessary when handling due to its potent stinging hairs.
Rarityuncommon
Description
Loasa sclareifolia is an herbaceous plant, often annual or biennial, distinguished by its vibrant orange, five-petaled flowers and stems covered in stinging hairs. These hairs cause significant irritation upon contact, a characteristic shared with many species in its genus.
