Which plants do not have flowers, and which roots?

Flowers as reproductive organs appeared about a hundred million years ago, and they are found only in angiosperms. There are no flowers in such groups of plants as ferns, mosses, as well as all other spore plants. There are no flowers and algae. Roots are found only in higher vascular plants (for example, gymnosperms, angiosperms, or higher spore species). Thus, they are absent only in algae and bryophytes, which instead of roots have other organs – rhizoids.