Different Crop Symbols?

[76561198069658410]

I'm new to the game. Played about 8 hours now. Just a bit stuck on the symbols for each crop. It shows them on the silos but i don't know which crop is which. can someone tell me?

[clif9710]

corn should be obvious, with the cob sticking up in the middle, barley has "whiskers" standing out, wheat is clean looking and canola has the look of a tree.