Ehretia rigida (Puzzle bush, also Afrikaans: Deurmekaarbos = "confused/tangled bush"), is a small, multi-stemmed tree with a tangled growth habit belonging to the Boraginaceae or borage family. It occurs over a wide range of habitat throughout the eastern part of South Africa, and in Namibia, Botswana, Zimbabwe and Mozambique. The genus honours the botanist Georg Dionysius Ehret, a celebrated botanist and botanical illustrator of the 18th century.