Stylar canal present. Outer integument contributing to the micropyle. Polar nuclei fusing prior to fertilization. Synergids sometimes with filiform apparatus. Endosperm formation nuclear, or helobial.
Capsules sometimes denticidal, or poricidal .
Seeds copiously endospermic. Hypocotyl internode absent. Seedling collar not conspicuous. Seedling cataphylls absent. First leaf dorsiventral.