I'm not quite sure which variety your speaking of. To my knowledge Okra, as a whole, http://garden.org/plants/brows...
are native to SE Asia, and Africa. But I'm not familiar with an 'African' variety. If you click on the link above, it will take you to our database showing many different varieties.
I've also grown the 'Clemson Spineless' with much success, and this year I'm growing 'Emerald', and 'Baby Bubba'.
'Emerald' is quickly becoming our favorite!