Noun
Any of the many plants similar to ginger in appearance or aroma.
Any of several species of Asarum, especially Asarum caudatum (British Columbia wildginger), Asarum canadense, and Asarum sieboldi.
Any of the Alpinia species (shell gingers), especially Alpinia caerulea.
Curcuma australasica (native turmeric)
Hedychium gardnerianum (kahili ginger, ginger lily)
Siphonochilus aethiopicus (African ginger)
Any of the numerous Zingiber species
Source: en.wiktionary.org