Pterocarpus angolensis of the family Fabaceae (syn Leguminosae) the legume, pea, or bean family
From Southern Africa, this wood is also widely sold in the USA as kiaat. It is sometimes used as a teak substitute
my samples: NOTE: these pics were all taken in very bright incandescent lighting ("soft white" at 2700K) colors will vary under other lighting conditions
both sides of a sample plank of muninga / Pterocarpus angolensis --- HUGE enlargements are present. This sample was loaned to me by David Clark whom I thank for this and other contributions to the site.
end grain and end grain closeup of the piece directly above
both sides and two closeups of a plank labeled as "fiddleback" kiaat. I find the "fiddleback" designation highly dubious. It's clear from the closeup that there are at least some areas on the plank with a tight curl, but this is a very sloppy fiddleback.