Cucurbits, (squash, cucumbers, melons, watermelons) have male and female flowers) The female flower will be sitting on a recognizable baby fruit. The male just has a straight stem.

Do pumpkins and gourds have only female flowers? I have many pumpkins that have been flowering, but so far I haven't seen any baby fruit. Thanks again!

Melanie

The older open pollinated cultivars will typically have male flowers a week or so before the females start. but all the plants will at some time have both male and female flowers.

Here's a link to the FAQ page on the vegetable forum. It briefly describes the difference.

Here is a link that might be useful: Male VS female flowers