"La Puce" wrote in message
oups.com...
On 30 May, 18:29, Serena Blanchflower
wrote:
Beside calling this flower Centaurea (which I've always done or called
it Bleuet des champs) what do you call it?
http://cjoint.com/?fEs6lCTAwA

I've always known it as Cornflower.

You see I'm very confused. There's Cornflower known as centaurea
cyanus, which has closed petals (my wedding flower) and there's the
Common Knapweed called centaurea nigra. There's also the Centaurea
nemoralis which almost look like a dandelions's head but in blue. I'm
asking this because I've always had to argue about the cornflower
known as centaurea cyanus and the C. nigra being the one being
confused with the former. God, I hope it makes sense. Different name
for different places I suppose. Now what would you call this:

http://cjoint.com/?fEuQMkTSxi

The first I would call perennial cornflower and the second a knapweed, but
it illustrates the short comings of "Common" names

--
Charlie, gardening in Cornwall.
http://www.roselandhouse.co.uk
Holders of National Plant Collections of Clematis viticella (cvs) and
Lapageria rosea