About Buddleja sessiliflora Kunth
Buddleja sessiliflora Kunth is a trioecious plant that grows as a shrub or small tree, reaching 1.5 to 5 meters in height. Its trunk grows to less than 7 centimeters in diameter, and the bark is yellow-brown and fissured. Young branches are subquadrangular and yellowish, with the youngest branch sections covered in tomentum. Leaf shape and size vary widely across the plant: basal leaves are ovate, 9 to 23 centimeters long by 5 to 14 centimeters wide, with serrate margins. Upper leaves are lanceolate or narrowly elliptic, 5 to 15 centimeters long by 1.5 to 3 centimeters wide, with entire or irregularly serrulate margins. The upper surface of both types of leaves is generally glabrescent. The inflorescences are yellow, leafy-bracted, and 6 to 25 centimeters long. They are made up of sessile or short pedunculate heads 1 to 3 centimeters in diameter, each holding 10 to 35 flowers. The flower scent is generally considered unpleasant, described as "like ammonia but sweeter". This species has a ploidy of 2n = 76. It is currently known to be in cultivation at Le Jardin de Rochevieille in France.
