Solanum aculeatissimum, otherwise known as the Indian Nightshade, is a weedy shrub that bears small, 2-3 cm pale yellow fruit

Fruit

In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

 following white flower

Flower

A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...

s with characteristic Solanum yellow stamen

Stamen

The stamen is the pollen producing reproductive organ of a flower...

s. Where S. aculeatissimum is native to has yet to be conclusively determined. Despite its common name suggesting a South-Asian

South Asia

South Asia, also known as Southern Asia, is the southern region of the Asian continent, which comprises the sub-Himalayan countries and, for some authorities , also includes the adjoining countries to the west and the east...

 origin, however, the plant's origin is most likely either Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

 or South America

South America

South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

; while specimens have been identified in Asia, it is rare there and believed to be the result of accidental or deliberate introduction

Introduced species

An introduced species — or neozoon, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its indigenous or native distributional range, and has arrived in an ecosystem or plant community by human activity, either deliberate or accidental...

. It is closely related to other Solanum species native to both sub-Saharan Africa and Central America

Central America

Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...

. Africa was the first continent in which S. aculeastissium was documented. Scottish-born botanist Francis Masson

Francis Masson

Francis Masson was a Scottish botanist and gardener, and Kew Gardens’ first plant hunter.Masson was born in Aberdeen. In the 1760s he went to work at Kew Gardens as an under-gardener. Masson was the first plant collector to be sent from Kew by the newly-appointed director Sir Joseph Banks...

 found the plant near the Cape of Good Hope

Cape of Good Hope

The Cape of Good Hope is a rocky headland on the Atlantic coast of the Cape Peninsula, South Africa.There is a misconception that the Cape of Good Hope is the southern tip of Africa, because it was once believed to be the dividing point between the Atlantic and Indian Oceans. In fact, the...

 either during the years 1772–1774, or during a subsequent expedition when he remained in southern Africa

Southern Africa

Southern Africa is the southernmost region of the African continent, variably defined by geography or geopolitics. Within the region are numerous territories, including the Republic of South Africa ; nowadays, the simpler term South Africa is generally reserved for the country in English.-UN...

 from 1786 until 1795. In South America, the plant was first described in 1816-1821 by Augustin Saint-Hilaire

Augustin Saint-Hilaire

Augustin François César Prouvençal de Saint-Hilaire , French botanist and traveler, was born at Orléans, France, on 4 October 1779. He began to publish memoirs on botanical subjects at an early age...

.