Centipede or St. Augustine?

[tadghostal]

I could use some help identifying what type of lawn this is. If I read the identification guides correctly, this would be St. Augustine because it has opposite leaves (as opposed to alternate leaves with Centipede). However, several people have told me that St. Augustine doesn't grow here (Central North Carolina, with clay soil). If it's Centipede (very common here), how is it that it has the opposite leaves, which are supposed to be one of the main distinguishing features between these two grasses? Am I looking at the pictures wrong?

Any help would be greatly appreciated. Thanks in advance!

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