
Nasa karsteniana
Image: Karsten,G.C.W.H. s.n. [s.d.] (cc-by)
NameNasa karsteniana
Scientific NameNasa karsteniana (Urb. & Gilg) Weigend
Common NamesStinging Nettle (Andean), Ortiga Brava
Plant FamilyLoasaceae
Natural HabitatNative to the Andean regions of South America, specifically found in Colombia and Venezuela, often in montane forests or disturbed areas.
Parts Usedwhole_plant,leaf
Medicinal Actionsanalgesic,anti-inflammatory,antioxidant
Traditional UsesTraditionally, species within the Nasa genus are used topically as a counter-irritant for rheumatic pain, arthritis, and muscle aches, leveraging their stinging properties. Some may also be used internally for inflammatory conditions.
Active Constituentsflavonoids, phenolic compounds, alkaloids, histamine-like compounds
Preparation Methodspoultice,infusion,tincture
Contraindications & WarningsDue to the presence of stinging hairs, direct skin contact can cause significant irritation, redness, and itching. Internal use should be approached with caution, especially for pregnant or breastfeeding individuals, and those with gastrointestinal sensitivities.
Cultivation NotesPrefers well-drained soil in montane environments, often found in partial shade. Requires careful handling due to stinging hairs.
Rarityuncommon
Description
A herbaceous plant characterized by deeply lobed or toothed leaves and stems, often covered with stinging hairs. It typically exhibits a sprawling or somewhat climbing growth habit.





