You can, if you wish. You can also call it bitter melon or bitter squash. It has other names.
Student or Learner
Do you call it "bitter gourd"?
I might start to call it a momordica charantia - much more exotic and sounds like a character from Tolkien! Until now, I think I had only heard "bitter squash".
Last edited by emsr2d2; 29-May-2016 at 16:01. Reason: Fixed typo
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.
In AmE, gourds are inedible relatives of squashes. I'd use one of the other suggestions.
I am not a teacher.