What kind of plant is Azolla?

Last Update :2024.04.19

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1. What kind of plant is Azolla?

2. Growth environment of Azolla

3. Distribution range of Azolla


Azolla is a small floating plant belonging to the Azolla family and Azolla genus, and is a type of fern. The plant floats on the water and has alternate leaves. Its initial color is green and turns purple after autumn. It often coexists with Anabaena algae and has fast reproduction speed, high yield and strong adaptability. Usually grown in rice fields, ponds, reservoirs, and inner lakes. It has relatively high requirements for temperature conditions during its growth period. Too high or too low temperature will affect growth.


What kind of plant is Azolla
1. What kind of plant is Azolla?

1. What kind of plant is Azolla?

Azolla is a small floating plant of the Azolla family and Azolla genus. It is a type of fern. It is also called triatomine, purple algae, red duckweed, etc. The plant floats on the water and is mostly oval or triangular in shape, with slender rhizomes and many roots. Its leaves are alternate, initially green in color, and turn purple after autumn.

2. Azolla’s growth environment

Azolla often coexists with Anabaena. It has fast reproduction speed, high yield and strong adaptability. Usually grown in rice fields, ponds, reservoirs, and inner lakes. It has relatively high requirements for temperature conditions during its growth period. Too high or too low temperature will affect growth. Growth will stop when the temperature is below 5 degrees or above 40 degrees. Growth begins between 8 and 12 degrees, with the fastest growth between 15 and 20 degrees, and slow growth above 35 degrees. Also, pay attention to the pH of the water. It can grow in water with a pH value of 3.5-10, but the optimal pH value is 6.5-7.5.

3. Azolla’s distribution range

Azolla is widely distributed in the Yangtze River Basin and various provinces in the north and south of my country, including Hebei, Shaanxi, Yunnan, Guizhou, Central China, East China, Sichuan, and Gansu , Liaoning and other regions. It is also distributed in Japan, India, Pakistan, Philippines, and the Korean Peninsula.


2. Growth environment of Azolla

3. Distribution range of Azolla














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