Buddleja cordobensis is a species endemic to dry hillsides in the Argentine

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...

 provinces of Córdoba, San Luís, and La Rioja at altitudes of 700 - 1500 m; it was first described and named by Grisebach in 1874.

Description

B. cordobensis 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...

 densely-branched shrub 1 - 2 m high, with grey fissured bark. The young branches are terete 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...

, bearing coriaceous, ovate

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 2 - 8 cm long by 0.5 - 2 cm wide with 0.5 cm petioles, thickly tomentose on both surfaces. The deep yellow inflorescences comprise one terminal and < 9 pairs of globose heads 0.6 - 1 cm in diameter, each with between 12 and 25 flowers; the corolla tubes are 3 - 4 mm long.

The species is considered closely related to B. araucana

Buddleja araucana

Buddleja araucana is endemic to the semi-deserts and steppes of Patagonia, from southern Mendoza to Río Negro and Neuquen provinces in Argentina, and adjacent Chile. The species was first described and named by Philippi in 1873.-Description:...

 and B. aromatica

Buddleja aromatica

Buddleja aromatica is endemic to the Cordillera Oriental and Central of Bolivia, and northern Argentina, where it grows on rocky areas amid semi-arid scrub and thorn. The species was first described and named by Rémy in 1847.-Description:...

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