stolon

Short definition from Wiktionary

Noun

1. 1
   A shoot that grows along the ground and produces roots at its nodes; a runner.
2. 2
   A structure formed by some colonial organisms from which offspring are produced by budding, found in bryozoans, pterobranchs, some corals, and other invertebrates.
3. 3
   A hypha that acts as a runner, connecting sporangiophores.