Although the mustard plant is very slender and looks like a green filament to the naked eye, it is big enough for people to call it a "macroalgae" because it is composed of many cells, which is a "monster" compared with those unicellular algae with a diameter of only a few microns to several hundred microns.

Characteristics of Carex plants

Cabbage is very small and looks like a green filament to the naked eye. It consists of many cells, larger than a single cell with a diameter of micron. Cabbage is very erect, with cylindrical branches, but several of them are flat. Carex is cold-tolerant, so it is generally suitable for growth in cold climate, and it needs to maintain a certain amount of water, which is beneficial to the growth of Carex, and it is mostly distributed in coastal areas of China.