Biological Sciences: Botany

Contains information on the names, taxonomy, distribution, and morphological characteristics plants native to and naturalized to North America north of Mexico.

A free index to information about seed plants, ferns and their allies. It contains information on the names of plants and citations to the articles that established the plant's name.

The PLANTS database from the U.S. Department of Agriculture provides information about vascular plants, mosses, liverworts, hornworts, and lichens found in the U.S. and its territories. It can be used to search both common and scientific names. Results include information about the plant, its distribution, status (endangered or threatened), and pictures. Links to other information about the plants in the database are also included.

The GRIN Taxonomy contains classification and names of cultivated plants throughout the World. It includes information about over 40,000 species of plants.

An index to Botanical information on the Internet, compiled by people at several herbaria and botanical gardens.

The Illinois Extension Service provides a wide range of resources related to horticulture, including a Plant Search system that helps users identify plants for gardens.

A website from the from Illinois Cooperative Extension Service that allows users to search for plants that can be used in various garden conditions.

This web site has a wide variety of information on gardening and plants, including a Plant Finder, that can be used to find plants that might be suitable for a given garden location.

The Midwest Invasive Plant Network works to reduce the impact of invasive plant species in the Midwest, specifically the upper Midwest and Ontario, Canada. They have a free app for cell phones that can be used to identify native alternatives to invasive plants.

This page from the Missouri Botanical Garden provides information on plants for problem locations and sustainable gardening.

A digital collection of historical publications related to gardening and home maintenance. Some may be out of date.

The Pollinator Partnership has a series of ecoregional planting guides with information about plants and flowers that can be used to create pollinator friendly habitats.

A consortium of natural history and botanical libraries is cooperatively digitizing older publications related to biology, biodiversity and natural so that they can be freely viewed and used online. The library can be searched or browsed by title, author or subject. Images from the publications can be used in publications, but remember to cite the source!

A collection of resources related to gardening and plants, including educational resources for general users and teachers.

An online community for information related to gardening.

This site, from the University of Connecticut, can be used to identify trees, shrubs and vines that might be suitable for a given garden location.