Commented: Choosing Open-pollinated Bulbing Onions for Wet TropicsUH has a couple of varieties of onions; I don't know if they are hybrids. https://www.ctahr.hawaii.edu/seed/seeds.asp#onion
They may be willing to discuss other options.
You don't work for UH, do you...
Commented: Is this a yucca???That's called "Money Tree" here in Hawaii; I think it's related to Ti plants.
Might also be a yucca. If only we all used proper names instead of common names.