Cucurbitaceae is a plant family commonly known as melons , gourds or cucurbits and includes crops like cucumbers , squashes ( including pumpkins ) , luffas , melons and watermelons . Cucurbitaceae is a plant family commonly known as melons , gourds or cucurbits and includes crops like cucumbers , squashes ( including pumpkins ) , luffas , melons ( including watermelons ) .