
Nicotiana ameghinoi
Image: Donat, A. (cc-by)
NameNicotiana ameghinoi
Scientific NameNicotiana ameghinoi Speg.
Common NamesPatagonian Tobacco, Wild Tobacco
Plant FamilySolanaceae
Natural HabitatEndemic to arid and semi-arid regions of Patagonia, specifically southern Argentina (Santa Cruz province) and possibly Chile. It thrives in rocky or sandy soils at moderate altitudes.
Parts Usedleaf,flower,whole_plant
Medicinal Actionsanalgesic,antimicrobial
Traditional UsesHistorically, various Nicotiana species, including wild tobaccos, have been used by indigenous peoples for ritualistic purposes, as a stimulant, an emetic, an insect repellent, and externally as a poultice for pain relief or skin ailments. Due to its high toxicity, internal medicinal use is extremely dangerous and not recommended.
Active ConstituentsNicotine, Nornicotine, Anabasine
Preparation Methodsinfusion,poultice,powder
Contraindications & WarningsHighly toxic; internal use is extremely dangerous and can be fatal. Contraindicated in pregnancy, lactation, cardiovascular disease, hypertension, gastrointestinal disorders, neurological conditions, and for children. Interacts with numerous medications.
Cultivation NotesPrefers full sun to partial shade and well-drained, sandy or rocky soils. It is drought-tolerant once established and can be propagated from seed.
Rarityuncommon
Description
Nicotiana ameghinoi is a small, perennial herbaceous plant, often forming a basal rosette of deeply lobed or pinnatifid leaves. It produces erect flowering stems bearing tubular, often inconspicuous flowers, and the entire plant is typically glandular-pubescent.




