Hieracium was the first thing that came to my mind also. We have both native and introduced Hieraciums in northern Idaho. The introduced species are very invasive and are on our state's noxious weed list. Your photo does not look like either of these. If it is a native, hopefully invasiveness won't be a problem. It would be a good idea to have it identified to species when it blooms.

I'm glad to read all these reports; they're interesting! Thanks to everyone who's written in. Rosemeadowgardener: I don't recognize any of the weeds you list; are they Australian natives, or exotic: do you know their botanical names? Thank God we don't have one of the worst curses of North America here: no poison ivy, oak, sumac. How interesting to read Marianne's weed list from the other end of the European temperate zone and discover that I have all the nasty weeds she does, and several of the nice ones. Galium aperine is an unpleasant plant, sticky and climbing, but there are a number of other Galium species that grow locally that are rather nice. Sweet woodruff is Galium odoratum. Our native primrose is Primula vulgaris; and we too have anemones, hepaticas, wild geraniums--harebells I think not. Connie speaks of the huge weed population of her property, which is an old farm. We too garden on a former farm and downhill from a current one, and I agree with what her post suggests, that agricultural properties present particular weed problems. Ongoing plowing leaves ground permanently disturbed, given weeds fertile ground to grow; grazing animals can trample ground, and the hay brought in to feed them can bring weed seeds from other areas. The year after the shade garden was flooded with manure from a cattle enclosure above, the weed population there was amazing. And we get great numbers of weeds, some of them highly obnoxious, along the drainage ditches that descend from our neighbors' plowed fields through our own land. Then, if fields and pastures are abandoned, they begin to go to brush, and you get brambles and other colonizing species--Connie's plant list is different from mine, but the process is the same. What the heck is Creeping Charlie? A couple of you have mentioned it. The various posts have covered quite a bit of territory, not only in the literal sense, on the topic of weeds. Paula took up the issue of invasive exotics that push out native species on undomesticated land (as well as the native but obnoxious Poison Oak). This is a problem all over the world, of course. I read in that interesting book 'Ecological Imperialism' about how many plants flourished in Europe along with the development of agriculture and became weeds, then traveled all over the world with European colonizers and established themselves in temperate zones everywhere, often at considerable cost to native species. We too have our exotic invasive species--one standout here in the hills is black locust, Robinia pseudoacacia, originally from North America--but I wonder what the effect has been on our native flora of a few thousand years of tolerably intensive agriculture. Were there species that went extinct because they were useless to humans and occupied land that could be used for farming and other useful activities? Some plant populations exist in part as a result of human activities: we have a rich population of native orchids many of which grow in pasture land and are now threatened because grazing is disappearing and the land is turning to brushland and then to woods. But perhaps three thousand years ago the orchids that grew were those adapted to woodlands? Lavender lass: do you know the species name of your artemisia? We have one ugly native artemisia, A. vulgaris, but a couple of nice ones. Another pleasant weed I remembered is lemon balm, Melissa officinalis--what a fine plant to share a name with. It's too invasive to plant, but grows wild at the edges of beds, is fragrant, and has fresh green leaves that are pretty in spring. I feel better every time I see it. I like mulleins too. We have a woolly species similar to what erasmus describes which makes a fine ornamental; the problem is that it seems to need a somewhat lighter soil than is present in most of our garden; otherwise it's not fussy. Melissa

Hello, I'm new here, I guess this conversation is about a week old--but it interested me. I was thinking-- there is such a huge emphasis on trying to make things the way they were 'natively' or in the past when it comes to plants. Sometimes it seems almost as if planting anything perenial would be 'naughty' somehow. Funny, cuz to me, life isn't about anything if it isn't about change and adapting to whatever comes at you next. And that has been my experience all along. I kind of admire those plants that have made themselves at home in strange places. Also-- going back to the day the world began-- who knows what was native then? I live in a new construction area in North Dakota. The land around me is prairie--I have no idea if it is truly native--likely its been beet fields for awhile prior to my moving here, and was prairie long before that. There aren't exactly bison roaming nearby anymore either, but I do enjoy seeing the giant bunnies and I have found it fascinating to learn about the weather and widlife here in my new home. I am a wisconsin woodland transplant myself. For years I was happily used to the woodsy beauty of my old home--trilliums, jack in the pulpits etc.. Suddenly last fall I came to a place that is all flat, with bright sunshine and wind almost all the time. At first I really didn't know if I would like this. But when spring came and I began to smell the absolutely beautiful perfume in the air and hear all the birds singing--I was thrilled. Now I am hoping they will not cut down all the 'prairie/weeds' in our neighborhood where houses are popping up like weeds on every empty field, so I can keep on smelling and hearing and seeing them. Looking at the weeds here--I don't know how many are native but I'm not native either and I think we'll be happy together. I am considering putting a few of them in my garden--there's a couple of grasses I really like and I found a fabulous looking vetch with some kind of yellow rattle looking flower. I never thought I'd learn to love land that was flat as a pancake--but I like it here and am learning to appreciate the prairie. I hope I won't be too invasive though. ;-)Maryt

Jack, I can understand why an anonymous note would make you uncomfortable, and I can also understand why you don't want to name the plant because it's irrelevant to the discussion. However, if it is on your state's noxious list, should you as a responsible citizen continue to offer it for sale? If it is not on the list then there's no issue. Here's what I would do. Print out the "Severe Threat" list for your state from the Invasives.org website Vaccinium provided, post it in a prominent location and post below it your "Company Policy" that your customers will never find one of these plants for sale at your nursery. How many of your customers have actually ever seen that list? And, how many confuse "invasive" with "aggressive spreaders or seeders"? You'll be educating them. If a customer questions the invasiveness of a plant you sell, you can show them the list and explain the difference. I have never seen and never expect to see Japanese Honeysuckle, Kudzu, Tree of Heaven, Mimosa, Common Privet, or Chinese Privet for sale at any nursery in the South. However, I have purchased Variegated Porcelain Berry and have it growing on an arbor. That plant is not on my state's invasive list, but is on "Watch List B, plants that are severe problems in surrounding states, but have not been reported in Tennessee". I'll watch it. Interestingly enough on "Watch List A: Exotic plants that naturalize and may become a problem in the future", among others are listed Buddleia, Cosmos, Rose of Sharon, Spearmint, Peppermint, and Grape Hyacinth. All of these are commonly found in every nursery and most gardens. Where do you draw the line? Do you refuse to sell any plant that is listed on not only the Severe Threat List, but also the lower threat lists the watch lists? That's your decision and your conscience.