I am looking for wild American Pennyroyal (i called it mosquito grass and haven't seen any since I was a kid). I have a wooded area and would like to cultivate a wild patch. I have red sassafras, persimmon, and various wild fruit trees as well as wild blackberries, yellow sorrel, and a wide variety of domesticated and wild plants.

Solanum diphyllum Here is a link that might be useful: Solanum diphyllum

It looks like wild carrots if it doesn’t grow upright and tall. Otherwise, it’s poison hemlock if it grows 2-4 feet tall and the stem and top of the root area are stripped or spotted with purple.

I'm in rural central NY State, on the line between zones 4-5. I had some "dwarf pennyroyal" from a local nursery which I just love -- it was a VERY low to the ground plant, very green and very dense. You could walk on it and it felt just wonderful -- so thick and springy. It did not survive the winter, however, and when I went back for more, the nursery said their supplier didn't have it any more. I've been looking and looking, but I can't find this plant. I've had other pennyroyals, even ones that say they are "dwarf," but they weren't this plant. I looked at photos of "dwarf false pennyroyal" -- that's not it. It doesn't grow UP much at all, mostly just OUT -- it covered ground pretty fast and was wonderful for walking on it. Anyone have ideas where I could find it. Even better if it were just like that but could survive a New York winter.