| Borettana Onion | |
| Cipollini Onion | |
| Cipolline Onion | |
| Cippolini Onion | |
| Italian Button Onion | |
| Onion |
| Plant Habit: | Shrub |
| Life cycle: | Other |
| Sun Requirements: | Partial Shade to Full Shade |
| Water Preferences: | Wet Mesic |
| Minimum cold hardiness: | Zone 3 -40 °C (-40 °F) to -37.2 °C (-35) |
| Maximum recommended zone: | Zone 12 |
| Flower Time: | Late summer or early fall |
| Inflorescence Type: | Spadix |
| Underground structures: | Taproot |
| Uses: | Medicinal Herb |
| Dynamic Accumulator: | Ca (Calcium) Fe (Iron) Zn (Zinc) |
| Resistances: | Tolerates dry shade |
| Pollinators: | Wind Cleistogamous |
| Conservation status: | Critically Endangered (CR) |
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