On Thu, 19 Jun 2008 19:07:39 +0100, Stewart Robert Hinsley
wrote:

Botanically raspberries are subgenus Idaeobatus and blackberries are
subgenus Rubus (aka Eubatus). Rubus leucodermis and Rubus occidentalis
are black-fruited American raspberries, but whether one of these is what
Focus are selling, instead of a variant of Rubus idaeus, or a hybrid of
some description, I can't say. (Wikipedia tells me that the American
black raspberry has its own taste, distinct from both that of the
European raspberry and that of the blackberry.)


It's a week or so since I visited Focus so I can't remember exactly. I
think the label may have been "rubus nigra" or "rubus nigrum". I had a
look at wikipedia before posting but couldn't find anything by that
name.