Lamium purpureum
- Several photographs of Red Dead-nettle and some identifying features.
- http://www.plant-identification.co.uk/skye/labiatae/lamium-purpureum.htm

Lamium album
- Several photographs of White Dead-nettle and some identifying features.
- http://www.plant-identification.co.uk/skye/labiatae/lamium-album.htm

Lamium confertum: Flora of Northern Ireland
- Photograph and regional distribution.
- http://www.habitas.org.uk/flora/species.asp?item=4241

Lamium galeobdolon @ Flora.cyberia
- Photo of Lamium galeobdolon
- http://www.floracyberia.net/spermatophyta/angiospermae/dicotyledoneae/lamiaceae/lamium_galeobdolon.html

Dead Nettle, Spotted Nettle (Lamium maculatum)
- Photograph and horticultural data for this plant.
- http://www.desert-tropicals.com/Plants/Lamiaceae/Lamium_maculatum.html

Lamium amplexicaule
- Photo of Lamium amplecicaule or henbit
- http://www.coestatepark.com/lamium_amplexicaule_gp.htm

Lamium purpureum page
- Description, photos, distribution, and habitat.
- http://www.missouriplants.com/Pinkopp/Lamium_purpureum_page.html

Lamium
- Description, horticultural data, distribution, and cultivars.
- http://pss.uvm.edu/pss123/perlam.html