Ruiz & Pav.
Buddleja incana (kiswar in Quechua, kiswara in Aymara and quisoar in Spanish) is endemic to Bolivia, Peru, Ecuador and Colombia, growing in canyon bottoms along streams at elevations of 2,700 – 4,500 m. The species was first named and described by Ruiz and Pavon in 1798.  
B. incana is a dioecious tree or shrub, 4 – 15 m tall, the trunk < 50 cm at the base, the bark brownish and furrowed. The branches are subquadrangular and tomentose, and form a rounded crown. The coriaceous leaves are mostly oblong, 7 – 21 cm long by 1 – 5 cm wide, the upper surface glabrescent, often bullate or rugose, the lower white or yellowish tomentose. The yellow to orange paniculate inflorescences have 2 – 3 orders of leafy-bracted branches bearing heads 1 – 1.5 cm in diameter, each with 15 – 40 flowers, the corollas 3 – 4 mm long. 
The leaves are used in folk medicine against toothache and as diuretic.
- Synonyms: Tropicos
- Ruiz & Pavon (1798). Prodr. 1: 52. t 80b. 1798
- Norman, E. M. (2000). Buddlejaceae. Flora Neotropica 81. New York Botanical Garden, USA
- Daniel W. Gade (1999): Nature and culture in the Andes. pp. 62-63: Deforestation and reforestation of the central Andean highlands. The case of the Buddlejas.
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