Posted: 11/06/2014 at 16:36
Never rely on a common name
There's a little book on on plant names which is old, first published in 1931.
Plant Names Simplified, their pronunciation, derivation and meaning, by AT Johnson and HA Smith. been reprinted many times, might still be available.
Yes it is. This has been very useful in the past.
AT Johnson as in Geranium 'AT Johnson'