Botanical Terms

Glossary of botanical terms used to describe the physical attributes of plants.
http://www.viable-herbal.com/herbology/herbs17.htm

Aquatic and Wetland Plant Terms

University of Florida indexed glossary of aquatic, wetland and invasive plants.
http://aquat1.ifas.ufl.edu/glossary.html

C1-Forest Ecology Working Group Terminology

November 1996 final draft of a glossary of forest ecology terms used by the Society of American Foresters.
http://soilslab.cfr.washington.edu/S-7/EcolGlos.html

Forest and Range Soils

Downloadable glossaries of soils and soil terminology.
http://soilslab.cfr.washington.edu/S-7/links.html

Forest Genetics

Glossary of terms used in forest genetics as well as those applicable to the general study of organisms.
http://www.esf.edu/for/maynard/GENE_GLOSSERY.html

GardenWeb Glossary of Botanical Terms

Regularly updated glossary of more than 4400 terms relating to botany, gardening, horticulture and landscape architecture.
http://glossary.gardenweb.com/glossary/

Botanical Glossary

Glossary of botanical terms, prefixes and suffixes.
http://www.anbg.gov.au/glossary/croft.html

Lichen Glossary

Terms likely to be used in the volumes of the "Flora of Australia" dealing with the lichens.
http://www.anbg.gov.au/glossary/webpubl/lichglos.htm