Geranium is not a lower plant. It has the differentiation of rhizomes, leaves, and complex cell tissues and structures. It will form embryos during individual development, so it belongs to higher plants. Lower plants refer to plants that are morphologically free of stem and leaf differentiation, have no tissue, have single cells in the reproductive organs, and do not develop into embryos. The lower plants are algae.
Geranium has stems and leaf flowers. The plant has multiple cells and tissues, and embryos are formed during individual development, so it is not a lower plant. Plants in nature are divided into angiosperms, gymnosperms, algae, ferns, and bryophytes. Except for algae, other plants are higher plants, which are the collective name of four other plants.
Higher plants refer to the more complex structures and lifestyles of plants. They mostly live on land. Plants have rhizomes and leaves. Plants have a variety of cells and tissues, which form embryos during individual development. Plants with obvious stems and leaves and flowering are all higher plants. But like mosses and ferns, they belong to higher plants even if they do not bloom.
Lower plants refer to plants with a single structure, simple form and lifestyle. Most of them live in lakes or oceans, and some plants cannot perform photosynthesis. Lower plants have no rhizomes, branches and leaves, and are mostly flaky and filamentous. For example, algae plants such as nori and kelp are lower plants in seawater, and some plants such as mushrooms cannot perform photosynthesis.
The lower plants in the plant kingdom are algae, and there are two types of freshwater algae and marine algae, which grow in freshwater and seawater. Algae plants contain chlorophyll components, which can carry out photosynthesis and transform nutrients by themselves. Algae were first recorded in the Spring and Autumn and Warring States Periods, and are relatively old plants in nature.