Wildflower Identification

Quick links:

This is an identification program for wildflowers in the northeastern and north-central parts of United States and adjacent Canada (if you live on the West Coast, try Reny's Wildflowers). Fill out the form as best as you can and you'll find which wildflowers match. If you find no flowers that match, use the "Back" button and try unchecking a box or two. If you want to see all the flowers in the database, simply hit "Identify" without checking any boxes.

To understand more about the various flower terms used, see Fred's Flower Finder (after reading the page click on the link at the bottom). There are a number of sites dedicated to wildflower identification, including My Wildflowers, Gallery of Connecticut Wildflowers, Reny's Wildflowers (for West Coast flowers), Kansas Wildflowers, Wildflowers in Bloom, and many others.

The database used here is derived from the "Quick-Key Guide to Wildflowers," by David Archbald, Rosemary V. Fleming, and Virginia M. Kline, Doubleday Press, 1968 (long out of print, unfortunately). A large number of corrections and additions have been made to the original data. Lee Dunbar has written a free standalone version of this wildflower program. A Wildflower Quiz Program is also available, which lets you test and improve your knowledge. There are also identification programs for trees and birds.

Some books which can help include:

Note: This wildflower database is not all-encompassing; it contains only about 550 of the estimated 5000 species of wildflowers native to the northeastern quarter of the continent. If you find any errors or want to add more flowers, write me. The database and perl program that runs here is free to download, and is fairly simple to figure out where and how to add wildflowers.

Wildflower Leaf Characteristics: see this image (from Wikipedia) for a useful description of the leaf terminology used below. Also see Fred's Flower Finder for a little more help.


Check the characteristics that you see (you can always hit "Back" and change these later).

Petal-like Parts
   3 petals
   4 petals
   5 petals
   6 petals
   in a head (7 or more petals): cluster of stalkless (or nearly stalkless) flowers
   tubular petals
   irregular petals: lipped, lopsided, not symmetrical

Flower Arrangement
   single flower on stem
   several flowers on stem
   cluster or spike of flowers (a spike is a long cluster, with the flowers along the stem)
   in an umbel (flowers in an umbrella-like cluster, with stalks radiating from one point)

Flower Width
   1/8 of an inch or less flower width
   1/8 to 3/8 inches flower width
   3/8 to 5/8 inches flower width
   5/8 to 1 inch flower width
   1 to 2 inches flower width
   2 inches or more flower width

Flower Color
   whitish flower color
   pink to red flower color
   yellow to orange flower color
   brownish or greenish flower color
   blue to purple flower color

When in Bloom
   blooms in April or earlier
   blooms in May
   blooms in June
   blooms in July
   blooms in August
   blooms in September or later

Plant Height
   plant height one foot or less
   plant height one foot to two feet
   plant height two feet or more

Leaf Petiole
   leaf petiole present (has a leafstalk)
   leaf petiole absent (has no leafstalk)

Leaf Arrangement
   alternate leaf arrangement on the stem
   opposite one another leaf arrangement on the stem
   arrangement of leaves on stem is whorled (three or more from a point)

Leaf Edges
   smooth leaf edges
   leaf edge has at least 4 teeth per inch
   irregular leaf edge
   deeply cut leaf edge

Leaf Veins Appear
   parallel leaf veins
   branched leaf veins

Simple Leaves (one per stem)
   simple leaves about as long as wide
   simple leaves about 1 1/2 to 5 times as long as wide
   simple leaves over 5 times as long as wide

Compound Leaves (many per stem)
   compound leaves are trifoliate - three leaflets radiating from a point
   compound leaves are pinnate - leaflets arranged along a midrib
   compound leaves are palmate - leaflets or lobes fan from one point

Stem
   stem creeps or twines
   stem is hairy or spiny
   stem is square

If you want to clear your choices, hit


I started this project back in 1984, believe it or not, and am doing it purely for fun. If you like this program enough to feel like showing your appreciation, please consider becoming a member or giving a tax-deductible charitable contribution to the Cornell Plantations. I have no affiliation with this fine institution; rather, I was married many years ago in their beautiful herb garden.

last updated April 26, 2006
Eric Haines, erich@acm.org