There is an excellent book you can buy, in alberta on native wildflowers----It's called----Alberta Wayside Wildflowers--printed by lone pine, by Linda Kershaw. Great book, shows lots of colour pictures and gives lots of information on them.
I got one a couple of years ago, as I had no idea what some of the plants were. I find it very interesting, it has pictures of pink Wild Roses on the Cover. Good Luck.
Odd Duck, your link is very interesting too, thanks.