See text Solanum mauritianum is a small tree or shrub native to South America, including Northern Argentina, Southern Brazil, Paraguay and Uruguay.

The woolly nightshade is a multi-branched shrub or small tree between 2 and 4 meters high (but can grow up to 10 m (33 ft) tall in the right conditions).

After flowering, spherical yellow berries up to 2 cm in size with numerous, flattened seeds 1.5 to 2 millimeters long form.

[7] It is tolerant of many soil types and quickly becomes established around plantations, forest margins, scrub and open land.

[10] However, mountain possums appear to eat it without ill effect, and stripping of bark, leaves, and terminal shoots has destroyed pure stands of S.mauritianum.

[11] The main toxic compound is the alkaloid, solasodine, with the highest content in the unripe green berry (2–3.5% dry weight).