Lotus, lotus, taro and lotus root all belong to the Nymphaeaceae family in the plant kingdom. Here is how they are related and where they grow:

1. Lotus and lotus are actually the same plant, just with different names. They are perennial aquatic herbaceous flowers that grow in bodies of water such as ponds or rivers. The roots of lotus and water lily usually grow in the mud, the leaves float on the water, and the flowers bloom above the water. Lotus and water lilies are found in many regions including Asia, Europe and North America.

2. Taro is a plant that grows in Asia and Africa and belongs to the genus Taro. The roots of taro grow in the soil, and the leaves are larger and green or dark green. Taro is mainly found in swamps and wetlands.

3. Lotus root is the underground stem of lotus or lotus, which is the root of lotus. Lotus roots grow in mud, usually at the bottom of ponds or rivers. The shape of lotus root is long and has many small holes, which can store water and nutrients. Lotus root is abundant in Hubei and other places in China, and is also a common vegetable or food ingredient in many regions such as Asia, Europe and North America.

To sum up, lotus, lotus, taro and lotus root are all plants in the Nymphaeaceae family, but they have different characteristics and growth environments. Lotus and lotus grow in waters, taro grows in soil, and lotus root is the root of lotus or lotus and grows in mud. These plants are distributed in different regions and have made important contributions to the natural environment and human culture.