Solanum lanceolatum

Solanum lanceolatum, with the common names orangeberry nightshade and lanceleaf nightshade, is a species of nightshade. It is native to regions of South America, including the Cerrado ecoregion of the Tropical and subtropical grasslands, savannas, and shrublands biome, primarily in Brazil.
The flowers of "Solanum lanceolatum" are light purple. All parts of the plants are toxic if eaten, including its fruit.
Taxonomy.
Former subspecies.
In the past this plant was variously considered a variety of other "Solanum" species. It was included in "Solanum glutinosum" as var. "irazuense" by Kuntze (note that there was also a "S. irazuense", which is the same as "Solanum pubigerum". It was included in "Solanum corymbosum" of von Jacquin (a valid species), and in "S. hernandesii" (which is currently "Solanum ferrugineum") as var. "corymbosum" by Dunal – not to be confused with the "S. corymbosum" of Wight based on Nees (which is the same as the "nomen nudum" "S. vagum" of B. Heyne, based on N. Wallich). Like many nightshade species, it was also included in "Solanum torvum", in its case by Otto Sendtner as var. "schiedeanum".
Former synonyms.
There are also a number of now-invalid names where the orangeberry nightshade was considered a distinct species. Many of these are also homonyms of other "Solanum" taxa:
Other nomenclature.
The taxon "S. lanceolatum" had also been used for other "Solanum" species in error. As used by Ruiz & Pavón Jiménez, it refers to "Solanum ruizii". The "S. lanceolatum" of Berthault is "Solanum cardiophyllum" as described by John Lindley.
Cultivation — invasive species.
"Solanum lanceolatum" is cultivated as an ornamental plant.
It was introduced to California as a garden plant, but has naturalized and ranked a noxious weed there.