participates in
non-senescing unfolded true leaf
immature unfolded true leaf
A 'non-senescing unfolded true leaf' (PPO:0001016) that is in the 'vascular leaf expanding unfolded stage' (PPO:0007006) or 'vascular leaf expanded immature stage' (PPO:0007007).
vascular leaf expanding unfolded stage
vascular leaf expanded immature stage