Hydroxycinnamoyl transferase that catalyzes the transfer of an acyl from p-coumaryol-CoA to putrescine, to produce coumaroyl putrescine. Can use feruloyl-CoA, caffeoyl-CoA and sinapoyl-CoA as acyl donors. Seems to be able to transfer the acyl group from feruloyl-CoA to the acyl acceptors agmatine and spermidine. Highly expressed in roots. Expressed at low levels in flowers. By wounding. Belongs to the plant acyltransferase family.