Buddleja longifolia is a species now restricted to remnants of montane forest in Loja

Loja

Loja may refer to:*Loja, Granada, Spain*Loja Province, Ecuador*Loja Canton, Ecuador*Loja, Ecuador, capital of Loja province*Loja, Latvia, capital of Sēja municipality*Loja, Estonia, village in Pühalepa Parish, Hiiu County, Estonia...

, Ecuador

Ecuador

Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

, and northern Peru

Peru

Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

 at altitudes of 2100 – 2600 m. The species was first described and named by Kunth in 1818.

Description

B. longifolia is a 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...

 shrub

Shrub

A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

 or small tree 1 – 7 m, occasionally <10 m, high with grey, furrowed bark. The young branches are quadrangular and tomentulose

Leaf

A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....

, bearing oblong-lanceolate to oblong 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...

 leaves 10 – 20 cm long by 3 - 6.5 cm wide, glabrescent

Glabrousness

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

 above, 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...

 to tomentulose

Leaf

A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....

 below. The white to pale yellow paniculate

Panicle

A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes....

 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 15 – 25 cm long by 15 – 22 cm wide with three orders of branches, the flowers borne in sessile

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...

 cymules 0.4 - 0.7 cm in diameter, each with 1 - 6 flowers. The corolla is 2 – 3 mm long.