Plants of the Simen covers 101 families (gymnosperms: 1; dicots: 79; monocots: 21), close to 300 genera and 545 species recorded from the Simen and surroundings. Brief descriptions are provided for all taxa, and keys are generally included if a family is represented by 3 or more taxa. The arrangement of families (and genera) follows the Flora of Ethiopia and Eritrea, making it easy to cross-check for more detailed information.
Plants of the Simen also provides general information on the Simen Mts. (geology, climate, habitats, people, wild animals), and includes practical tips for those wishing to stay in the mountains for a longer period of time (places to stay; suggested trekking routes, etc.).