Yes, it is Bottle Gourd, Lagenaria siceraria. Grew great for me during winter/early spring. Lpves water, fertile sun, and something to climb up on. Grew well for me in the Caribbean, well known to asian people. Had a bit of trouble with powdery mildew but it kept going. Pick young and small for tender fruit, remove oversized fruit or the plant will try to ripen them with a decrease in production. When vine declines the gourds harden to a shell which can be used for bottles, cups, etc, crafts, musical instruments, birdhouses. There are many shapes of lagenaria siceraria, from round to very long and everything in between. Search bottle gourd youtube and google.