In article , Nick Maclaren
writes

I have some spare tubers of these, mainly for Cambridge people. The
chufa and possibly oca I could post.

Oca, Oxalis tuberosum, a slightly lemony potato-like tuber.

Chufa, Cyperus esculentus, very small and nutty like coconut and
its inner rind.

Is that the same chufa that they make the drink horchata das chufas from
in spain? Aka tiger nuts?

croznes, Stachys affinis, a small tuber like white maggots, crunchy
but rather flavourless.

That's not the things also called 'chinese artichokes' is it?


--
Kay Easton

Edward's earthworm page:
http://www.scarboro.demon.co.uk/edward/index.htm