butterfly-bush Buddlejaceae (Loganiaceae) Buddleja davidii Franch.   symbol: BUDA2
	Leaf: Opposite, simple, ovate to lance shaped, finely serrated, 3 to 8 inches long, dark green above, white-fuzzy below. Flower: Narrow, upright spikes of deep purple (most common), pink, yellow or white flowers, each spike 3 to 8 inches long, individual flowers small with four petals, appearing mid-summer into the fall. Fruit: Dry, two-valved capsules, 1/3 inch long, ripen in late summer and fall. Twig: Moderately stout, very angled twigs, initially green and tomentose, later turning light brown and glabrous, large white pith, small buds. Bark: Thin, brown, splitting and peeling. Form: An upright, multi-stemmed shrub, reaching heights of 10 feet. In northern climates it will typically be killed back to the ground.
	USDA Plants Database Buddleja davidii is planted in the highlighted USDA hardiness zones to the left and may seed into the landscape. See a map of the states in which butterfly-bush has escaped (opens a new window).