Northern Ontario Plant Database
Vascular Plant Families -
Trees & Shrubs -
Cultivated Plants -
Rare Plants -
Weeds & Invasive Species -
Poisonous Plants -
North America -
Taxonomic Databases -
Miscellany - Glossaries & Dictionaries
Choose one of the links above for a list of plant-related websites about that category. Selected websites include only non-commercial, free-access sites that do not require passwords. The links provided have all been checked as of April 18, 2008, but visitors should note that most large websites have a regular downtime for editing and uploading more information. Often, this downtime occurs on the weekends, especially Sunday night (students take note!). If you find a link that doesn't work, try that site again at a different time or on a different day; if it still does not work, please report the problematic link to the NOPD.
Vascular Plant Families
Angiosperm Phylogeny Website
A website that summarizes the current phylogenetic classification of angiosperm orders and
families, compiled by Peter Stevens, University of Missouri-St. Louis and the Missouri Botanical
Garden. This website includes phylogenetic trees, order and family descriptions, a list of genera
in each family, some images, and a glossary with chemical compounds and their diagrams. This
is the classification followed by the Northern Ontario Plant Database. Botany students should
become very familiar with this website.
Botany Photo of the Day
Subscribing to this free website from the UBC Botanical Garden and Centre for Plant Research
will bring a new botanical image to your computer screen each day. A great way to start each
day! This site also provides access to numerous excellent images of previous Botany Photos of
Families of Flowering Plants
A DELTA database of technical family descriptions written by L. Watson and M.J. Dallwitz. An
important reference for plant taxonomy students.
Flora of North America
The definitive work on North American vascular plants and bryophytes, published in 30
volumes. See this link to a
families with published treatments; click on a family name to see the online descriptions and
keys to the species. Illustrations of many species are included, as well as distribution maps of
each species. The Northern Ontario Plant Database follows the nomenclature used by FNA. As
new volumes are published, the nomenclature in our database will be revised accordingly. One
advantage of the online version of this resource is that illustrations appear screen-size, rather than
half-page size, as in the printed volumes.
Flowering Vascular Plant Families
An indispensable website for all botany students with the best plant images on the web, by
Gerald D. Carr at the University of Hawaii. This is another website that should be bookmarked
and visited often by botany students. The link above provides access to the families according to
Phylogeny Website, which we follow, but access based on other classifications is also
A comprehensive website from Southern Illinois University that presents numerous scanned,
digital, and microscopic images of plants. Select by Order, listed along the left margin, or click
on the button Image by Family to access the list of angiosperms, gymnosperm, and
Plant Image Collection
An excellent library of over 21,000 images of plant species and habitats, from the Smithsonian
Institution. Images are intended for public and professional, non-commercial use.
An extremely useful collection of plant images, including habit shots, close-ups, scanned
herbarium specimens, botanical illustrations, cladograms, and keys, compiled by biologists at
The C.V. Starr Virtual Herbarium - International Plant Science Center
A searchable database from the New York Botanical Garden (NYBG), offering scanned images
from the 750,000 herbarium specimens housed at NYBG.
Vascular Plant Image Gallery - Digital Flora of Texas
An comprehensive collection of vascular plant images, mainly from the Southwest, arranged
alphabetically by family. Compiled by the Bioinformatics Group, Texas A & M University.