''Buddleja oblonga'' is a species

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

to the

Serra do Caparaó Serra do Caparaó is a Brazilian mountain range located between the states of Espírito Santo and Minas Gerais. Toponym "Caparaó" is a tupi word, the etymology of which is unclear: it may come from ''capara-oca'' (house made with capara, a ...

and south as far as Paraná in

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

, where it grows in fields and damp thickets near streams at altitudes of 1,000 – 2,200 m.Norman, E. M. (2000). Buddlejaceae. ''Flora Neotropica 81''. New York Botanical Garden, USA The species was first named and described by Bentham in 1846.Bentham, G. (1845). ''DC., Prodromus'' 10: 442. 1846.

Description

''Buddleja oblonga'' is a dioecious shrub with dark-brown longitudinally fissured bark. The young branches are quadrangular, bearing

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

oblong to elliptic membranaceous leaves 6 – 15 cm long by 0.8 – 3 cm wide,

glabrous Glabrousness (from the Latin '' glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of ...

above and

glabrescent Glabrousness (from the Latin ''glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of ...

below. The white

inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...

s are 4 – 10 cm long, comprising 4 – 8 heads in the axils of the reduced terminal leaves, the heads 0.7 – 1.5 cm in diameter, with 5 – 9 flowers; the corollas 4.5 – 5.5 mm long.

References

oblonga Flora of Brazil Flora of South America Plants described in 1846 Dioecious plants {{Scrophulariaceae-stub