While helping a neighbor clear an overgrown backyard, I came across a woody vine (shown in attached photos) which varied in size from thumb-size diameter to the 3-inch diameter specimen shown in the photos. Alas, there is no foliage on the vine which might possibly aid in its identification, as the vine was situated under dense tree and shrub cover. Shortly after the large specimen was cross-cut, it emitted a semi-transparent exudate from the core of the stem. The vine seemed to proliferate by projecting runner roots from any segment of the vine which touched the soil. From this brushcutter's standpoint, it is a terrific challenge to remove, resisting all but chain saw and loppers to cut it down. The exudate dries after a few hours, forming a flexible, slightly iridescent mass. I'd be grateful if you could identify the plant. Many thanks