Adventitious shoots are shoots that arise from any location on the plant except in the axil of a leaf at the node.
They can form on stem internodes, leaves, roots, or callus.
They form the basis for a number of tissue culture systems and adventitious shoot formation is usually required to recover shoots that have been genetically transformed.
These are in contrast to axillary shoots that form at the expected nodal locations on a stem.
Adventitious shoots from a poplar internode stem piece.
