The innovation that defines these nonalgal plants is the presence of female reproductive organs with protective cell layers that protect the zygote and developing embryo.
ðɪ ˌɪnəvˈeɪʃən ðæt dᵻfˈaɪnz ðiːz nˌɑːnˈælɡəl plˈænts ɪz ðə pɹˈɛzəns ʌv fˈiːmeɪl ɹᵻpɹədˈʌktɪv ˈɔːɹɡənz wɪð pɹətˈɛktɪv sˈɛl lˈeɪɚz ðæt pɹətˈɛkt ðə zˈaɪɡoʊt ænd dɪvˈɛləpɪŋ ˈɛmbɹɪˌoʊ.