Buddleja lojensis is a species endemic to the Loja

Loja Province

Loja Province is one of 24 provinces in Ecuador and shares its southern border on the west by El Oro Province, on the north by El Azuay, and on the east by Zamora-Chinchipe. Founded on its present site in 1548 by Captain Alonso de Mercadillo the site had been previously moved and rebuilt from La...

 region of southern 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 Piura

Piura

Piura is a city in northwestern Peru. It is the capital of the Piura Region and the Piura Province. The population is 377,496.It was here that Spanish Conqueror Francisco Pizarro founded the third Spanish city in South America and first in Peru, San Miguel de Piura, in July 1532...

 in 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....

, where it grows on mountains, savannahs and scrub, notably near streams, at elevations of 1,600 - 2,550 m. The species was first identified and described by Norman in 1982.

Description

B. lojensis 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 1 - 3 m tall with yellowish bark. The young branches are subquadrangular, almost glabrous

Glabrousness

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

, bearing 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...

 ovate or 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...

 leaves 7 - 10 cm long by 2.4 - 4 cm wide, membranaceous, glabrescent

Glabrousness

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

 above and below. The 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....

 inflorescences are 7 - 15 cm long by 4 - 9 cm wide, comprising 2 - 3 orders of leafy-bracted

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...

 branches bearing small cymules

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...

 of 5 - 10 flowers, the corollas 2.5 - 4 mm long.