The California Grasses & Grass-like plants app is a user-friendly, off-line, field app for identifying the most common grasses and grass-like plants in California. This app is an essential resource for K-16 educators and students, ranchers, land managers, field technicians, recreationists, and nature enthusiasts.Nearly 400 color images illustrate vegetative and reproductive features of 100 grasses and grass-like plants found in California. This app also includes an easy-to-use filter to help users narrow down their search of grass and grass-like plant species, plus information about each plants forage value and importance for wildlife, erosion control, and use in restoration projects. Comparisons to similar species, synonyms, flowering periods, distribution maps, and black-and-white drawings are included to aid in identification. This app also includes a search feature and an extensive glossary.The California Grasses and Grass-like plants app is an invaluable resource for people learning about the unique characteristics and value of some of the most ubiquitous and important plant families present in California.