Flora og plantegeografi, trænøgler


Germplasm Resources Information Network

Baumkunde.de (Træbestemmelsesnøgle)

Den virtuella floran

eFloras.org

Gymnospermae

The Gymnosperm Database

What Tree is This?

Angiosperm Phylogeny Website

Berkeley Natural History Museums

USDA Hardiness Zones and what to grow

African Trees

How to Identify Trees


Europa

Baumportal

Deutsches Baumarchiv

Rare and threatened trees and shrubs of Luxembourg

Global Trees (truede træarter)

British Trees

Schweizer Flora

Dutch Treeguide

Plants of Belarus

Laurel Forest of Madeira

Skogens Pärlor


Nord- og Sydamerika

Pacific Northwest Conifers

Flora of North America

Nøgle til Nordamerikanske træer

Native Conifers of North America

Digital Flora of Texas

Calphotos (Californiens flora i billeder)

Image Archive of Central Texas Plants

Southwest Colorado Wildflowers

UConn Plant Database Main

Native woody flora of Maryland

Maple Tree Identification I

Maple Tree Identification II

Comparison of Features of Maples (Acer spp.)

Guide to identifying Virburnums

Trees in Canada

Ontario's ancient and old growth forests

Nøgle til træslægter i CostaRicansk tropisk tørskov (pdf)

Trees of Costa Rica's Pacific Slope

Trees, Shrubs, and Palms of Panama

The Amazon Plants

Key to trees of Wisconsin

Key to trees of Northern Utah Mountains

Key to trees of South Dakota

An Interactive Key of Common Iowa Trees

Washington Native Plant Society

Trees of Alabama and the Southeast

Kentucky Trees


Afrika-Asien-Australien

PlantZAfrica.com (Sydafrikanske planter)

Catalogue of the Vascular plants of Madagascar

Introduction to Australian Conifers

Guide to Australian plants

Flora of New Zealand

Australian Tropical Rain Forest Plants

Flowering plants of Hokkaido