Can you think of others that should be added?
I can then ask Dave or Terry to put it up and we will have an easy access to necessary information.
I would like some suggestions please.
I like the native plants lists. I think the invasives lists would be more useful in the Invasive Plants forum, especially since most of them are introduced and not native plants.
BTW, I don't know if this will be helpful but I just reposted this link in the Mid Atlantic forum. It has a list of native plant nurseries in the Chesepeake Bay watershed states - MD, NJ, NY, NC, PA and VA. http://www.fws.gov/chesapeakebay/Nursery.htm
For California, www.calflora.org is my absolute favorite reference. To access much of it you have to sign up for an account, but it's free. It covers pretty much any plant that occurs in the wild in CA (and it tells you whether it's native, introduced, invasive, etc). I find it to be a great resource when I find things growing at the beach or in a local park--you can search by plant family or genus, by the county that you found it in, by the type of plant community it was growing in, etc. And there are photos for most of the more common ones. It's rare that I find something growing in the wild that I'm not able to ID by looking around on there.
I use the state search at wildflower.org http://www.wildflower.org/plants/ when I want to search for plants native to New Mexico. The search can be refined in many ways.
Edited to add another site 2/10/08 http://www.plantnative.org/
Has 3 search boxes
1: Native Plant Nursery Finder
2: Community Service Organization Finder
3: Regional Plant List Finder - When I tried this link for my state it did not work. I'm going to notify them by email. I tried several and only one link worked for me.
Native Plant Landscaping in Pennsylvania. This is an EXCELLENT site for PA residents. http://www.pennystone.com/
Daily Weather Records and climate summaries
Articles and Essays
This site shows images of seeds, SEEDLINGS, and fruits. Why emphasis on seedlings? I do not know how often I have tried finding a good place to verify the seedlings I have coming up. It does not have everything, but more than I've seen elsewhere.