Appears to be involved in meristem formation and in the regulation of leaf morphology. Misexpression makes the leaf more compound which is always associated with growth retardation and loss of apical dominance, resulting in dwarfed, bushy plants. Probably binds to the DNA sequence 5'-TGAC-3'. Expressed in the apical meristems, in the newly emerged lateral primordia in the floral bud, in their vascular bundles and in the cortex parenchyma of the floral pedicle. Also present in the lateral tips of leaf primordia. Belongs to the TALE/KNOX homeobox family.