I've seen many websites that say Allium x proliferum, or Allium cepa var. proliferum has bulbils instead of flowers. I found one site that mentioned that it has hermaphrodite flowers, but that site said a few other things at odds with other sites, so I'm not ready to believe it either. Is that true, that bulbils don't develop from flowers?
The bulbils that develop on hardneck garlic and some varieties of onions are a form of asexual reproduction: they are clones of the mother plant. No flowers are involved.