- PLANTS National Database - Includes a large database of plant names, a plant Photo Gallery, Plant Fact Sheets, Information about Culturally Significant Plants, Information about Noxious and Invasive Plants, Plant Characteristics Information, Threatened and Endangered Plant Information, Wetland Plant Information, Links to thousands of Plant-Related Websites, Links to Plant-Related Software Tools. - ENGLISH
http://plants.usda.gov
- The International Plant Names Index - The International Plant Names Index (IPNI) is a database of the names and associated basic bibliographical details of all seed plants, ferns and fern allies. Its goal is to eliminate the need for repeated reference to primary sources for basic bibliographic information about plant names. - ENGLISH
http://www.ipni.org
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