Question
I've got a photo of a Plectranthus which I've incorrectly called a legume. Could you please find a more correct identification? Here is the photo:
http://en.wikipedia.org/wiki/Image:Legume.jpg
As last time, I really appreciate your service!

Thanks,
Peter

Answer
Peter,
Aspects of the Plectranthus flower do resemble a legume, but Plectranthus are in the mint family. (note the square stems)  Your picture doesn't show the foliage, which would give me more complete information, but it looks like the fall blooming Plectranthus ciliatus.  There are several cultivars of this species.  Another similar "spur flower" is the P. zuluensis (some say it's the same plant...I will leave this to others to sort out.)

If the foliage is grey rather than green with a purplish tinge, it would be P. argentatus.

all the best,
C.L.