Dark leaves could be a Persicaria species or cultivar such as P bistorta. Pale leaves look like something in the Boraginaceae, maybe a Comfrey. It is about to flower and a picture then would help a lot. Alternatively I could be utterly wrong on both.

NHBabs, I didn't check for scent, but thought they were similar to Chaerophyllum in the shape of the leaves. However, the young Chaerophyllum plants that I've seen, to date, had a less dense basal rosette with more upright leaves. Thanks for the plant nerd comment. When plants go away in the winter months, I gravitate to gathering places (churches, golf courses, schools, parks, vacant lots, parking lots, etc.) to stave off boredom. Those places are usually warmer than the surrounding country sites, and also have some rare plants that are transported there by muddy tires, etc. I should mention that I only check school grounds on Sundays. School officials get way too nervous if I show up on a weekday with binoculars. As an aside, I 'm thinking of making an action movie called "Urban Botanist", but can't seem to interest anybody in the starring role. ;-)

Floral, the plants are an hour away, and I didn't think to check for sap. The S. oleracea leaves that I've handled in the past had sharp spines, but those were cauline leaves. I've never handled oleracea basal leaves. They do, though, match in general appearance, so you and tofi may be right in suspecting Sonchus.

Bart: I do not know if there would be anywhere near my home where they sold horse food and could buy some sack of alfalfa (dry grass cut). I do not know if dry would be effective for this end of the basal shoots. I guess so. But two years ago I put as a padding of the orchard terraces spikes of dry cereal and cut into small pieces. It was terrible, thousands of seeds began to germinate and all the vegetable patches were filled with buds. I'm afraid to use alfalfa in this format for possible outbreaks. My desire is to find it in the form of a pellet. And while I find who through the web you could buy, sell in amounts that it is impossible to take even in the case of a very large garden as mine. lxxfcp: Thank you very much for taking the trouble to look for the link. Yes, fortunately I was able to open it. But using the Google translator ... ajajjajajajja is amazing, translated into Spanish, you can not understand anything. By the way, has come into my head what you should read what I write once google translated my Spanish to English jajajajajajja must be horrible to read me. As I have suffered when visiting that page. Thanks anyway. Really thank you very much!! I keep saying in any case that I think that it is easier to do with very young plants. Otherwise, the rods become very rigid, very woody and I doubt that some of my shrub roses like that resist bending without breaking some reach. The images of that link are of a climber. In that case, yes, I see it more possible because many climbing roses emit flexible buds. nikthegreek: I'm sorry to disagree with you. I am convinced that the grafted roses, take much longer and do so to a lesser extent to emit basal shoots. On the contrary, the fact of burying the knot or graft point, as Bart says, encourages the rosebush to issue its own roots on the rootstock. Having a good sized root ball made up of its own roots undoubtedly facilitates the emission of these basal shoots. Years ago, when my rosebushes planted with the graft point on ground level or my rosebushes did not emit enough, also they took enough to form basal shoots. On the contrary, in this garden, where all my roses (about 120/130) are buried their grafting point, most have basal shoots. In addition, these buds appear very early, it is not necessary that the rose be very adult. Yes, I agree with you that the fact of eliminating the oldest buds encourages the rose to emit new ones from the ground to replace the eliminated one. In any case, I think it is really important to make things easier for our roses to form a large root ball. A well-fed plant, healthy and with a good root system, will undoubtedly have fewer problems to come to sprout new basal shoots. Thank you very much everyone for your interesting opinions. I am very happy for your participation.