Without a title - Title Convolvulaceae Juss. A radical forms upon seed germination but soon degenerates after aerial portions of the plant have established haustorial connections to the host.
Mature plants have no connection to the ground.
Epidermis with stomata. Primary vascular tissue centrifugal. Vascular bundles usually five, small, colateral. Xylem of vessels with simple end-walls. Stem without intraxylary phloem.