The text is devoted to roots and tubers, reflecting the importance which still exists in some Andean regions of the numerous members of the Cannaceae, Leguminosae, Cruciferae, Solanaceae, Basellaceae and other families which have edible roots or tubers.    From Wordnik.com.  [1. Lost crops of the incas.] Reference

Cannaceae.    From Wordnik.com.  [Chapter 26] Reference