''Buddleja blattaria'' is a small shrub endemic to the regions of

Piura Piura is a city in northwestern Peru located in the Sechura Desert on the Piura River. It is the capital of the Piura Region and the Piura Province. Its population was 484,475 as of 2017. It was here that Spanish Conqueror Francisco Pizarro fou ...

and

Cajamarca Cajamarca (), also known by the Quechua name, ''Kashamarka'', is the capital and largest city of the Cajamarca Region as well as an important cultural and commercial center in the northern Andes. It is located in the northern highlands of Peru ...

in northern Peru.Norman, E. M. (2000). Buddlejaceae. ''Flora Neotropica 81''. New York Botanical Garden, USA The species was first described and named by J. F. Macbride in 1934.Macbride, J. F. (1934) ''Candollea'' 5: 399, 1934.

Description

''Buddleja blattaria'' 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 m tall, with brown fissured bark. The young branches are

quadrangular Quadrangle or The Quadrangle may refer to: Architecture * Quadrangle (architecture), a courtyard surrounded by a building or several buildings, often at a college Various specific quadrangles, often called "the quad" or "the quadrangle": North ...

and covered with thick tomentum. The leaves are sessile elliptic or oblong-elliptic, 4–10 cm long by 1.5–3 cm wide, lanose on both surfaces. The white or cream inflorescence is 3–8 cm long, comprising sessile flowers borne on one terminal and 1–3 pairs of globose heads below, in the axils of small leaves, each head 1–2 cm diameter with 20–40 flowers, the

corolla Corolla may refer to: *Corolla (botany), the petals of a flower, considered as a unit *Toyota Corolla, an automobile model name * Corolla (headgear), an ancient headdress in the form of a circlet or crown * ''Corolla'' (gastropod), a genus of moll ...

5 mm long. The species is very similar to ''B. jamesonii'' found to the north in southern Ecuador but differs from the latter in having larger leaves with

crenate 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, ste ...

margins, and lacks the foliose axillary branches. ''B. jamesonii'' is also

trioecious Trioecy, or subdioecy, is a rare sexual system characterized by the coexistence of males, females, and hermaphrodites. It has been found in both plants and animals. Trioecy is sometimes referred to as a mixed mating system alongside androdioecy an ...

Cultivation

The shrub is not known to be in cultivation.

References

{{Taxonbar, from=Q4984424 blattaria Flora of Peru Flora of South America Taxa named by James Francis Macbride Plants described in 1934 Dioecious plants