It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Use these encyclopedias and reference books to find background information on your topic.
Access ScienceThis link opens in a new windowOver 8500 articles, 115,000 dictionary terms, and hundreds of Research Updates in all areas of science and technology; from McGraw-Hill.
Britannica AcademicThis link opens in a new windowFull content including over 80,000 in-depth articles, detailed maps, multimedia, and research tools.
Contains key plant information from 270 herbaria from around the world including many in New England. Over 1.8 million plant types are represented including high resolution images.
