Buddleja stachyoides is the most widespread member of the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 in 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...

, endemic to woodland edges, roadsides and riversides in Argentina

Argentina

Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

, 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...

, Bolivia

Bolivia

Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...

, Paraguay

Paraguay

Paraguay , officially the Republic of Paraguay , is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. Paraguay lies on both banks of the Paraguay River, which runs through the center of the...

, and Uruguay

Uruguay

Uruguay ,officially the Oriental Republic of Uruguay,sometimes the Eastern Republic of Uruguay; ) is a country in the southeastern part of South America. It is home to some 3.5 million people, of whom 1.8 million live in the capital Montevideo and its metropolitan area...

. 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...

 & von Schlechtendal

Diederich Franz Leonhard von Schlechtendal

Diederich von Schlechtendal was a German botanist born in Xanten. He was Professor of Botany and Director of the Botanical Gardens at the Martin Luther University of Halle-Wittenberg from 1833 until his death in 1866, and Editor of the botanical journal Linnaea.His most important work was in...

 in 1827.

Description

B. stachyoides is a shrub 1 – 3.5 m high and, unlike most South American members of the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

, is monoecious, not dioecious

Dioecious

Dioecy is the property of a group of biological organisms that have males and females, but not members that have organs of both sexes at the same time. I.e., those whose individual members can usually produce only one type of gamete; each individual organism is thus distinctly female or male...

. The young branches are quadrangular, occasionally winged, and covered with a greyish tomentum

Tomentum

Tomentum may refer to the following:*In botany, a covering of closely matted or fine hairs on plant leaves. *A network of minute blood vessels in the brain.* Tomentum in zoology are a short, soft pubescence...

, bearing leaves subsessile

Sessility (botany)

In botany, sessility is a characteristic of plants whose flowers or leaves are borne directly from the stem or peduncle, and thus lack a petiole or pedicel...

 or with a petiole

Petiole (botany)

In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...

 < 1 cm, ovate or oblong-lanceolate

Leaf shape

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

, the blade 5 – 20 cm long by 3 – 8 cm wide, membranaceous, glabrescent

Glabrousness

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

 above, 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...

 below. The yellow to pale orange inflorescence

Inflorescence

An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

 is unbranched, 10 – 20 cm long, comprising 4 - 20 pairs of axillary cymes

Inflorescence

An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

; the tubular corolla is 5 – 7 mm long.

Cultivation

The shrub was introduced to the UK (as B. australis) as early as 1822, when the Royal Botanic Garden Edinburgh

Royal Botanic Garden Edinburgh

The Royal Botanic Garden Edinburgh is a scientific centre for the study of plants, their diversity and conservation, as well as a popular tourist attraction. Originally founded in 1670 as a physic garden to grow medicinal plants, today it occupies four sites across Scotland — Edinburgh,...

 grew it from seed received from a Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

n source. It remains cultivated (under glass) in the UK at the Royal Botanic Gardens Kew, the Cambridge Botanic Garden, and as part of the NCCPG national collection at Longstock Park

Longstock Park

Longstock Park is a country estate in the civil parish of Longstock in the Test Valley district of Hampshire, England. Formerly Longstock Manor, of medieval origins, it was purchased by Sir Joshua East in the nineteenth century. On his death, the estate passed to his sons Alfred and Arthur. In...

 Nursery, near Stockbridge

Stockbridge

-Places:In the United States* Stockbridge, Georgia* Stockbridge, Massachusetts* Stockbridge, Michigan* Stockbridge Township, Michigan* Stockbridge, New York* Stockbridge, Vermont* Stockbridge, Wisconsin* Stockbridge , WisconsinIn the United Kingdom...

, Hampshire

Hampshire

Hampshire is a county on the southern coast of England in the United Kingdom. The county town of Hampshire is Winchester, a historic cathedral city that was once the capital of England. Hampshire is notable for housing the original birthplaces of the Royal Navy, British Army, and Royal Air Force...

. B. stachyoides has naturalized in Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, aong a creek bank at Ashgrove

Ashgrove, Queensland

Ashgrove is an inner suburb of Brisbane in Queensland, Australia, located approximately 4 km north-west of the Brisbane CBD. Ashgrove is a leafy residential suburb, characterised by its hilly terrain and characteristic Ashgrovian houses built in the early 20th century...

 near Brisbane

Brisbane

Brisbane is the capital and most populous city in the Australian state of Queensland and the third most populous city in Australia. Brisbane's metropolitan area has a population of over 2 million, and the South East Queensland urban conurbation, centred around Brisbane, encompasses a population of...

, in St Helena, and Réunion

Réunion

Réunion is a French island with a population of about 800,000 located in the Indian Ocean, east of Madagascar, about south west of Mauritius, the nearest island.Administratively, Réunion is one of the overseas departments of France...

.

Suppliers

The shrub is also in commerce in the UK; suppliers can be found in the RHS

Royal Horticultural Society

The Royal Horticultural Society was founded in 1804 in London, England as the Horticultural Society of London, and gained its present name in a Royal Charter granted in 1861 by Prince Albert...

'Plantfinder' http://apps.rhs.org.uk/rhsplantfinder/.