The border between the United States of America and Mexico is the busiest in the world. This area is also the meeting place of the two great cultures of the Western Hemisphere, Spanish-speaking Latin America and English-speaking North America. Recent demographic migrations coupled with increasing globalization have necessitated closer cooperation and communication between these groups.

The area of communication of this dictionary centers around the vernacular or common names of plants. Many recent immigrants from Mexico and further south have gained employment in areas of agriculture,...