That is a good site, I've used it before to figure out spinach plants that I decided to let go to seed- even after years of growing and saving seed I had not done spinach and was kinda surprised that they have male and female plants..
A good book for folks who want to get into it a bit deeper than the site is "Seed to Seed" by Susan Ashworth- I borrowed it from the library to read and put it on the wish list for books, but so far it is a bit beyond my price range, I might just have to talk baby brother into buying it for me for my holiday gift..
But I do know quite a few plants by heart and can give some advice if needed. You just ask me!:wave: