Balbisia gracilis

Aka Wendtia gracilis - known locally as the 'oreganillo amarillo'. This is a very special small shrub from Chile belonging to the ledocarpaceae, related to Melianthus and Francoa, but looking nothing like either of those plants – perhaps more like a small yellow-flowering Ribes or Potentilla.

Small, delicate, finely cut glaucous leaves, and profuse small yellow flowers with prominent red stigma on wiry stems in summer. 

A nice thing for a sunny well-drained spot and should be hardy over much of the southern half or the UK. Thanks to Ann Cann for this very rare plant. 
£15