Buffalo-bur
NameBuffalo-bur
Scientific NameSolanum rostratum
Common NamesBuffalo-bur, Kansas thistle, Prickly nightshade, Buffalo bur nightshade, Horsecactus
Plant FamilySolanaceae
Natural HabitatNative to central North America, it thrives in disturbed soils, pastures, cultivated fields, roadsides, and waste areas. It is often considered a weed and has naturalized in many parts of the world.
Parts Usedroot,whole_plant
Medicinal Actionsanalgesic,diuretic
Traditional UsesTraditionally, some Native American tribes used Buffalo-bur, though it is generally considered toxic. The root was sometimes prepared as a decoction and applied externally for toothaches. The plant was also used by some for its diuretic properties or for treating certain skin conditions, typically through external application.
Active ConstituentsSolanine alkaloids, Solasodine, Solamargine
Preparation Methodsdecoction,poultice,infusion
Contraindications & WarningsBuffalo-bur is highly toxic due to the presence of solanine alkaloids and should not be ingested. All parts of the plant are poisonous. Internal use is strongly discouraged and can cause severe gastrointestinal upset, neurological symptoms, and even death. Pregnant or nursing women, children, and individuals with liver or kidney conditions should strictly avoid contact and use.
Cultivation NotesBuffalo-bur is an annual plant that readily self-seeds and can become weedy. It prefers full sun and well-drained soils. It is not typically cultivated for medicinal purposes due to its toxicity and invasive potential.
Raritycommon
Description
Buffalo-bur is an annual, spiny plant characterized by its bright yellow, five-petaled flowers with prominent stamens and a curved style. Its stems, leaves, and calyx are densely covered in sharp, yellow spines, and it produces distinctive bur-like fruits.
