POWO has merged this into nodding onion (Allium cernuum); we have yet to review this merge.
• Allium oxyphilum (lillydale onion) | USDA PLANTS Database (About This Site)
• Lillydale Onion | iNaturalist (About This Site)
• Allium oxyphilum | Biota of North America Project (BONAP) (About This Site)
• Allium oxyphilum | NatureServe Explorer (About This Site)