I've been using Libre office to make tables that link the Plants for a Future Database to a table of locally available plants that I compiled from nurseries,
books on traditional first nations use of plants and
local gardening books to create a list of almost 600 available edible species of plants in my area. Others can download the database and create their own locally available plants table using availability lists from nurseries and then the database will sort through your lists and pull out all of the edible ones, or all of the nitrogen fixing ones, or all of the drought tolerant ones, or all of the edible, drought tolerant nitrogen fixing ones... Then it can show you where to find those plants. Fortunately this is all up and running on my computer and I've transferred it to a few machines however we need to get it online so that nurseries can help us make the available plants tables and update them. See eeLANdpLAN.blogspot.com for more info and to lend a helping hand.