''Buddleja thyrsoides'' is a lowland species endemic from southern Paraguay to the deltas of the Río de la Plata and

Paraná River The Paraná River ( es, Río Paraná, links=no , pt, Rio Paraná, gn, Ysyry Parana) is a river in south-central South America, running through Brazil, Paraguay, and Argentina for some ."Parana River". Encyclopædia Britannica. Encyclopædia Br ...

in Brazil, Argentina and Uruguay.Norman, E. M. (2000). Buddlejaceae. ''Flora Neotropica 81''. New York Botanical Garden, USA The species was first described and named by Lamarck in 1792.Lamarck, J-B. (1792). ''Tabl. encycl. 1: 291, 1792

Description

''Buddleja thyrsoides'' 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 reproductio ...

shrub 1 – 3. m tall, with tan bark, the young branches covered with white tomentum. The leaves are sessile or subsessile, linear or linear-lanceolate, the blade 7 – 15 cm long by 0.4 – 3 cm wide, subcoriaceous,

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 white tomentose below. The fragrant white leafy inflorescences are 5 – 15 cm long by 2 – 3 cm wide, comprising 1 – 2 orders of branches, 0.5 – 2 cm long with cymose clusters of 5 – 15 flowers; the tubular corollas 3 – 4 mm long.

Subspecies

Norman identifies two subspecies distinguished by narrower seeds and denser tomentum resp.: * ''Buddleja thyrsoides'' subsp. ''angusticarpa'' * ''Buddleja thyrsoides'' subsp. ''thyrsoides'' (synonyms= ''Buddleja chloroleuca'' Kraenzl., ''Buddleja salicifolia'' Vahl.)

Cultivation

Neither the species nor its subspecies are known to be in cultivation.

References

{{Taxonbar, from=Q4984728 thyrsoides Flora of Argentina Flora of Brazil Flora of Paraguay Flora of Uruguay Flora of South America Dioecious plants