Ask Mr. Smarty Plants

The expertise and focus of the Wildflower Center are with plants native to North America.  Of the three plants you name, Zingiber zerumbet (pinecone ginger) is native to southeast Asia and Hedychium coronarium (white ginger) is native to India.  There are two cannas that are native to North America, Canna flaccida (bandanna of the Everglades) and Canna glauca (maraca amarilla); but I would guess you probably have Canna indica (Indian shot), native to tropical Central and South America or Canna x generalis (canna lily), a hybrid of C. indica and C. flaccida.   Generally, we aren't able to help much with non-native plant questions, but perhaps we can offer some sources that can help you.  You might try the International Bulb Society's Bulb Identification Clinic.  You can take photos of your different bulbs and submit your photos and ask the experts there to identify which is which—or you can see photos of the bulbs of the pinecone ginger and white ginger at Buried Treasures.  Click on "more details" by the plant's photo to find the photo of the bulb. If you figure out those two, then by process of elimination the other bulbs should be your canna bulbs.  You can also Google "canna bulbs" and select "Images" and you will find that several photos appear.