ABSTRACT
In the Comprehensive List the following symbols are used:
N = nutrient values listed in Chapter 6
E = ethnic use described in Chapter 4
T = toxin reported in the plant food
(T) = toxin reported in a look-alike species (not closely related) or in a part of the plant not listed as edible; or toxin at relatively low levels
I = an introduced species
R = rare or endangered plant, or highly vulnerable to overharvesting
