Buddleja kleinii is a species endemic to a small area of cloud forest bordering the eastern portion of the Serra Geral of Santa Catarina and the Rio Grande do Sul in Brazil at altitudes of 1200 – 1650 m.Norman, E. M. (2000). Buddlejaceae. Flora Neotropica 81. New York Botanical Garden, USA The species was named by Norman and Smith in 1976.Norman, E. M. & Smith, L. B. (1976). Fl. Illust. Catar. Logan. 25. t. 3, f. 14 - 17. 1976.
Description Buddleja kleinii is a dioecious shrub 1 – 2.5 m high with dark-brown fissured bark. The young branches are subquadrangular and tomentose, bearing narrowly elliptic leaves 5 – 10 cm long by 1.5 – 3.5 cm wide, mostly on 1.5 – 2 cm petioles but occasionally subsessile; the blade is glabrescent above and tomentose below. The white inflorescence is 6 – 9 cm long by 2 – 4 cm wide, comprising pairs of congested cymes 1.2 – 1.7 cm in diameter, each with 10 – 15 flowers. The corolla is 6 – 6.5 mm long.
Cultivation The shrub is not known to be in cultivation.
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