Hybridises with: Orange-Ball-Tree producing Weyer's Butterfly-Bush (buddleja × weyeriana), a Butterfly-Bush type plant with orange-coloured flowers that are not as compactly spherical as are those of the Orange-Ball-Tree.

Slight resemblance to : Purple Loosestrife but only insofar as that too has a purple spike of flowers, often arching on larger plants.

Distinguishing Feature : Its long arching branches with a dense terminal spike of purple or mauve flowers consisting of hundreds of trumpet-shaped petals ending splayed into four short petals. The inner tube of the flowers is a striking and harshly contrasting yellow-orange colour.

A tall bush or shrub to 8 metres tall, but often much shorter, popularly grown in gardens. There are a great many varieties of Buddleja grown for gardens, some mainly white, others orange, a few red, but these too can escape into the wild fairly easily, especially the white variety.

Butterfly Bush also has a reputation for growing wild and behaving very weedish, especially in walls and canal abutments. It obtains its name because it attracts butterflies which often land on its flowers.

ANY TEXT GOES HERE