Clade B separates from the club and spikemosses and quillworts because plants on this branch all have true leaves, stems, and roots..
Step-by-step explanation:
All three groups of lycophytes have really different types of development, but they really do share a number of characteristics. Lycophytes have distinctive leaves that distinguish them from all other classes of plants. Their plants, classified as microphylls, have just one vein running along the length of the vine.
In reality, the stems of quillworts develop below the ground and the leaves develop only from the tip of the stem that sits at the ground level.
Club mosses and spike mosses produce roots from above ground, known as adventitious roots, and then develop into the surface. The roots of the Quillwort emerge from the base of their underground core.