Buddleja cuneata is a rare species endemic only to the southern plateau of Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

, where it grows in dry and rocky fields from Paraná

Paraná (state)

Paraná is one of the states of Brazil, located in the South of the country, bordered on the north by São Paulo state, on the east by the Atlantic Ocean, on the south by Santa Catarina state and the Misiones Province of Argentina, and on the west by Mato Grosso do Sul and the republic of Paraguay,...

 to Rio Grande do Sul

Rio Grande do Sul

Rio Grande do Sul is the southernmost state in Brazil, and the state with the fifth highest Human Development Index in the country. In this state is located the southernmost city in the country, Chuí, on the border with Uruguay. In the region of Bento Gonçalves and Caxias do Sul, the largest wine...

. The species was first described and named by Chamisso

Adelbert von Chamisso

Adelbert von Chamisso was a German poet and botanist.- Life :He was born Louis Charles Adélaïde de Chamissot at the château of Boncourt at Ante, in Champagne, France, the ancestral seat of his family...

 in 1833.

Description

B. cuneata is a shrub < 2 m high, with brown bark longitudinally fissured. The young branches are subquadrangular and tomentose

Tomentose

Tomentose is a term used to describe plant hairs that are flattened and matted, forming a woolly coating known as tomentum. Often the hairs are silver or gray-colored...

. The leaves are obovate

Leaf shape

In botany, leaf shape is characterised with the following terms :* Acicular : Slender and pointed, needle-like* Acuminate : Tapering to a long point...

 to elliptic

Leaf shape

In botany, leaf shape is characterised with the following terms :* Acicular : Slender and pointed, needle-like* Acuminate : Tapering to a long point...

, 3 – 5 cm long by 1.5 - 2.5 cm wide, with a glabrescent

Glabrousness

Glabrousness is the technical term for an anatomically atypical lack of hair, down, or similar structures...

 upper surface, tomentose

Tomentose

Tomentose is a term used to describe plant hairs that are flattened and matted, forming a woolly coating known as tomentum. Often the hairs are silver or gray-colored...

 below. The white to cream inflorescences are 4 – 10 cm long by 1.5 – 3 cm wide on one or two orders of branches, comprising sessile or short-pedunculate paired heads 1 cm in diameter, each with 6 - 9 flowers; the corolla tubes are 4 - 4.5 mm long.