I did not realize black medic could grow that big, thank you for the information. I knew there was a tall and a short growing variety of what I call hop clover. Many of these clover shaped plants blur into each other in my mind, I should renew my study of them since many of them are edible plants. Identifying plants is a handy survival skill besides being useful for property management.
I have Black Medic, among other weeds, in parts of my yard. If you let it grow unabated, it will grow a long taproot. Florida sandy soil is easy to penetrate so it grows an even longer than usual taproot, I believe. I have pulled this weed with a taproot over a foot long. Other soils may not allow such a long root, I don’t know. While Black Medic may be a nuisance, it is by no means my worst weed problem. Purple Nutsedge, Rattlesnake Root, Dichondria, Oxalis and Dollar Weed are much higher on my list of problems..................