Floras and sunflowers belong to the same Compositae, but floras belong to the genus dactylum, and sunflowers belong to sunflower. It can be seen from here that the two kinds of flowers are different.
Flemish originated in the south. Later it was introduced into England. Now it is planted in China. And the sun flower is originated in South America, introduced to Europe through Spain.
For the flowers, the temperature is a little higher than that of sunflower. In the daytime, it needs a temperature of 20 to 25 degrees. In the evening, it needs a temperature of about 16 degrees. To make it bloom, the temperature of the environment can not be lower than 15 degrees.
In winter, when the temperature is lower than 7C, it will stop growing. If it stays at zero for too long, it will even threaten its life.
2 sunflower seems to be more casual, as long as the temperature is higher than 10 degrees, it can grow normally and the higher the temperature, the faster the development.
Floras: the diameter of this kind of flower will reach 6 to 10 cm when it blooms in the flowering period. Its receptacle is flat and directly exposed outside. The diameter can reach 6 to 8 mm long. There are two layers of male flowers on the periphery. The outer corolla is in the shape of tongue, about 2.5 to 3.5 cm long and 2 to 4 mm wide.
2 sunflower: this kind of flower can be as long as 10 to 30 cm in diameter when it blooms in its flowering period, which is very large. Its flower size can be said to be 1 to 5 times the size of the franc
