[Edited by wcutler: this was moved from a resource discussion thread, where it was a reply to my statement that "Some of these look like they belong in different resource areas."] -------------------------------------------------- Right, native plants don't tend to be considered noxious weeds, although I've noticed that some are very similar to those plants, such as Geraniums, which include both native 'herbal wildflowers' and introduced 'noxious weeds'. Another example I've checked out at are plants that look very similar as biennial seedlings, like the noxious wild carrot (Daucus carota) versus the native Daucus pusillus (American wild carrot), as well as the noxious poison hemlock Conium maculatum, and one that is said to have both native and introduced populations, the common yarrow (Achillea millefolium). It may be visually impossible to distinguish between these species for their first year of development, as they may all look like the same rosette. They say that this is typically why people may be killed by the poison hemlock, because they think it is a carrot plant or something similar looking to a native or edible species. I'm not sure if there are some plants which are native to some places in the Pacific Northwest and considered noxious in others, but I gather there are various species that are noxious weeds in one state or locality and not in another. I checked it out a little bit though, and one example of an invasive species that is also native is something I'd already mentioned, the common yarrow, which is invasive to the Oregon Islands National Wildlife Refuge, because it isn't native to those islands, even though it may be native to the mainland surrounding them. So apparently some of the native species of the Pacific Northwest can also be invasive species within certain areas of it. Strange but true. Anyway, I wasn't trying to change the subject. If it isn't typical to consider invasive and poisonous species along with the native ones, whether or not there is some overlap between them, then I was off on a tangent there.