Sponsored by the USDA Natural Resources Conservation Service, this Plants Database site is a good place to check information on plants native to the U.S. and its territories. There are lists of federal and state noxious weeds, wetland indicator plants, endangered species and culturally significant plants. You can search by common or scientific name to find classification from kingdom through species, native distribution by state, endangered status, photos, links and more.
Tool or Gardening Product
I spotted some "potter's gloves" for sale at a recent garden conference, and I've been using them all week to transplant containers. The tag describes them as "ultra-lite" and that works for me. I like to protect my hands, but usually end up ripping off gloves because they're too cumbersome when tucking plants into pots or pulling tiny weeds. These gloves are made of a super-soft, micro-filament nylon coated with water-resistant polyurethane. They feel somewhat like rubber dish gloves, but thin enough and shaped more carefully to the hand to allow some tactile sense. The fabric is visible at the wrist, where it keeps a snug fit to prevent soil from sliding in. I won't use them when working with spiny cacti or wielding a shovel, but they work great for other chores. Available in fun, bright colors or serious dark green, and sizes XS, S, M, L.