How do I tell the difference between cucumber and pumpkin plants ?

I've grown them both from seed in my greenhouse and foolishly didn't put markers in to say which is which. I now want to put the pumpkins outside. They both have yellow flowers on them....... ???

How do I tell the difference between cucumber and pumpkin plants ?
the leaf of pumpkins are bigger than that of cucumber. and the plant would have some hairy growth on the leaf, as well as the stem. hope u can now differenciate between the two.
Reply:perhaps wait until they fruit? lol

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