True Fountainbushes (Psoralea rhizotoma) Dartmoor : Wildlands’ Trust Karkloof

Plant 370 mm high, flower 15mm. Observed in the grassland not far from the forest edge. Information as to geographical and altitude range in POSA (old) and references (Pooley:KZN, Pooley:MF 236 and Boon:Trees p166) confuses me so ID in more or less a guess based on range to suggested species in Boon. Its not a tree though.

Was Psoralea glabra