See also Botany Rules download - explanations of how plant names are used - not a plant checklist but available as a free download. Go to Botany Rules post
Recently Published
Global Garden. The Denver Post May 29, 2015 Link to Article
Plant checklists from various locations.
Plant checklists give plant common and scientific names at minimum. I have included photos and facts about the plants where there is space.
Colorado:
Devil’s Backbone Natural Area, Loveland, CO plant checklist. 
11 Common Plants of Devil’s Backbone - Photos of plants, names and a few facts about the plant.
Additional Information on Common Plants of Devil’s Backbone. More detailed information to supplement the plant checklist - online
Driving I-76 and I-80 , Crossing Eastern Colorado and Nebraska - botanic
al changes you can see from the car at 75 mph.
Download: CrossingeasternColorado&Nebraska
File describes traveling east from Denver on Interstate 76 and then Interstate 80, noting visible changes that reflect the changes in rainfall in the area you pass through.
Peru:
Checklist of Common Plants of the Peruvian Amazon.
A list of plants frequently seen along the rivers of the Upper Amazon Basin in Peru
Download Checklist for Peruvian Amazon