Leftwood said:If you can trust your memory that flowers were not yellow, and yet, apparently, don't know what color they are .
The flowers are nearer to white/greenish. One other reference I saw said all the other Lithosopermum that may be encountered would be obviously bright yellow which is why I made that comment because they were definitely not bright yellow. Sorry, I wasn't very clear. Thanks for the link, I found a similar key also but I can't check out the pubescence until tomorrow because it's in a different garden. Thanks again.