''Buddleja aromatica'' is

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 els ...

to the Cordillera Oriental and

Central Central is an adjective usually referring to being in the center of some place or (mathematical) object. Central may also refer to: Directions and generalised locations * Central Africa, a region in the centre of Africa continent, also known a ...

Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...

, and northern

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, t ...

, where it grows on rocky areas amid semi-arid scrub and thorn.Norman, E. M. (2000). Buddlejaceae. ''Flora Neotropica 81''. New York Botanical Garden, USA The species was first described and named by

Rémy Rémy (; pcd, R’my) is a commune in the department of Pas-de-Calais in the Hauts-de-France region of France. Geography Rémy lies in the valley of the river Sensée, some southeast of Arras, on the D9 road. Population Places of interest ...

in 1847.Rémy, J. R. (1847). ''Ann. Sc. Nat. Bot.'' Ser. 3, 8: 226-227, 1847.

Description

''Buddleja aromatica'' is a

dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproducti ...

shrub, 0.5–2 m tall, with greyish fissured bark. The young branches are subquadrangular and

tomentose Trichomes (); ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a plan ...

, 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 ...

subcoriaceous oblong-lanceolate leaves, tomentose to

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 ...

above and lanose below, 2–6 cm long by 0.5–1.8 cm wide. The white or creamy white

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. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed ...

is variable, comprising one terminal head, or with up to four additional pairs of pedunculate heads below in the

axil A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, ...

s of small leaves, each head with 20–30 sessile flowers; the corollas are 3–4 mm long. The species is very similar to ''B. cordobensis'' and ''B. araucana'', but differing in some vegetative and reproductive features.

Ploidy Ploidy () is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes. Sets of chromosomes refer to the number of maternal and paternal chromosome copies, respective ...

: ''2n'' = 38.

Cultivation

The shrub is not known to be in cultivation. A juvenile specimen at the

Logan Botanic Garden Logan Botanic Garden is a botanical garden near Port Logan on the Rhins of Galloway, at the south-western tip of Scotland. The Botanic Garden was established in 1869 and was gifted to Royal Botanic Garden Edinburgh in 1969. It is now operated ...

Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to th ...

, perished circa 1995.

References

{{Taxonbar, from=Q4984420 aromatica Flora of Argentina Flora of Bolivia Flora of South America Dioecious plants