Trillium-L
- A trillium enthusiast discussion list, also for other woodland species. The site contains message archives from 1997 to present, and a form to join the list.
- https://listserv.surfnet.nl/archives/trillium-l.html

Trilliums and Woodlanders
- Gardener in Oregon displays photos and provides cultural notes on several species of trillium growing in her own and friends' gardens. Also offers a few tips on growing trilliums from seeds.
- http://www.peak.org/~parsont/rockgard/woodland02.htm

Trillium luteum
- Fact sheet from the Kemper Center for Home Gardening provides photos, summary information, and noteworthy characteristics for yellow trillium.
- http://www.mobot.org/gardeninghelp/plantfinder/Plant.asp?code=R840

Paghat's Garden: Trillium ovatum
- Gardener in the Pacific Northwest writes about Western trillium, both as it grows in its native habitat and in her garden. Several photos.
- http://www.paghat.com/trillium.html

Mike and Jan Slater: Trilliums and Related Genera
- Enthusiasts share their own and friends' photos, and a collection of links to trillium resources. Also information about Trillium-L, a mailing list about trilliums and other woodland species.
- http://www.voicenet.com/~mslater/pl_o_m~1/now.htm

The Trillium: Trillium ovatum
- Information about this species, Ontario's provincial flower. Habitat and preservation, transplanting, and growing from seed.
- http://www.naturepark.com/trilinfo.htm

Specialty Perennials: Trillium Links
- Annotated list of links to web pages for trilliums.
- http://hardyplants.com/trillium.htm