AL-Trees of Alabama and the Southeast
CA-CalPhotos
(CalFlora images)
CA-California Wildflowers (CAS)
CT-Connecticut Botanical Society Wildflower Gallery (500+)
Canada-Digital
Flora of Newfoundland & Labrador
Canadian
Prairie Wildflowers
DC-List of DC Flora Images at Smithsonian
FL-Common
Wetland Plants of Florida
FL-Floridata
Forestry
Images-Forest Health & Silviculture
GA-Georgia Wildflowers
Google Image
Search
Grass Images (Texas A&M U.)
HI: U. of Hawaii Native Plants
Internet Directory for Botany: Images
KY-Wildflowers
of Western Kentucky
Kansas Wildflowers & Grasses
MD-Salisbury University Arboretum (Images)
MD-USGS Patuxent Wildlife Research Center Herbarium
MI-Upper Peninsula Tree Identification
MO-Flowering Plants of the Ozarks
MO-Missouri Flora Website (Images)
MT:
Natural Heritage Program Photo Gallery
Medicinal Plants (Southwest School Bot. Medicine)
Mexico-Arboles
de la UNAM
NC-Wildflowers of the Southern Appalachian Mountains
NC-Wildflowers on North Carolina Roadsides
ND & MN-Selected North Dakota and Minnesota Range Plants
ND: Wildflowers of North Dakota
NRCS Photo Gallery
OK-Noble
Foundation Plant Image Gallery
OR-Photo Album of Western Plants and Wildflowers
PLANTS
Photo Gallery
PR-Caribbean Area Grasses (NRCS)
Select a Type of Tree Leaf (eNature.com)
Switzerland-Botanical
Image Database
TROPICOS Image Index
TX-Image Archive of Central Texas Plants
TX-Native Trees of Texas
TX-Texas Native Shrubs (TAMU)
TX-Texas Native Trees (223+)
TerraServer:
Aerial Photos
Texas A&M Vascular Plant Image Gallery: Summary Listing
UT-Chaparral Wildflowers (Southern Utah University)
UT-Intermountain Wildflowers (Southern Utah University)
University of Hawaii: Manoa Campus Plants
VA-Virginia Tech Dendrology
VT-Dendrology Tree Images & Identification (UVM)
WA-Central
Washington Native Plants
Wildflowers of Alabama
Plant
Specimens
Fairchild Tropical Garden Virtual Herbarium
NY-Vascular
Plant Specimen Images (NYBG) 82,000+
New York
Botanical Garden Virtual Herbarium
AL-Wildflowers
of Alabama
CA-CNPS Wildflower Links
CA-CalPhotos (CalFlora images)
CA-California Wildflowers (CAS)
CA-Wildflowers
of Southern California
CO-Southwest Colorado Wildflowers, Ferns, &
Trees
CO-Wildflower Photo Album (600+)
CT-Connecticut Botanical Society Wildflower Gallery (500+)
CT-Gallery of Connecticut Wildflowers
Canada-Digital
Flora of Newfoundland & Labrador
Canada-Wildflowers
of Ontario
Canadian
Prairie Wildflowers
Celebrating Wildflowers Coloring Book (USFS)
DC-List of DC Flora Images at Smithsonian
DE-Delaware Wildflowers
GA-Georgia Wildflowers
Google Image
Search
IN-Friesner Herbarium Butler University
KY-Wildflowers
of Western Kentucky
Kansas
Wildflowers & Grasses
MO-Flowering Plants of the Ozarks
MO-Missouri Flora Website (Images)
MO-Missouri Wildflowers
NC-Wildflowers and Plants of North Carolina
NC-Wildflowers of the Southern Appalachian Mountains
NC-Wildflowers on North Carolina Roadsides
ND: Wildflowers of North Dakota
OK-Oklahoma
Wildflowers
OR-Photo Album of Western Plants and Wildflowers
PA-Wildflowers of Western Pennsylvania
RI-Wildflowers of Rhode Island
TX-Chihuahuan
Desert Gardens (UTEP)
TX-Image Archive of Central Texas Plants
TX-Wildflowers in Bloom
US-Wildflowers of the Northeast and Northcentral
US-Wildflowers
of the Southeastern US
UT-Chaparral Wildflowers (Southern Utah University)
UT-Intermountain Wildflowers (Southern Utah University)
VA-Spring Wildflowers of Northern Virginia
WA-Central
Washington Native Plants
My Garden-slideshow
My Nature Photos-slideshow 
NeoFlora
Hort.Net Gallery
Hannelotte Kindlund's Garden
Hoot Owl Hollow
Hosta Library
John Lonsdale Gallery
The Virtual Herbarium
DC Flower Gallery
Plantcare.com
Plantsgalore.com
World Species List -
Mushrooms/Fungi
Keir's Botanical Photo
Archive
UK Plantfinder
Missouri Botanical Garden
Virtual Foliage
Australian National Botanic Gardens
Moosey's Country
Garden (New Zealand)
Monet's Garden
Monet's Garden tu
Royal Botanical Gardens
University of Wisconsin Arboretum
Texas A&M U Botany
Herbarium Image Listing
NatureServe
Gardenline
Burke Museum Gunther Garden