Canna is a perennial herb and a common ornamental flower plant in tropical and subtropical regions. Canna is also called red banana, small flower canna and small banana. Canna actually originated in Indian, Malaysian and other places. Now it has been artificially introduced and cultivated, and it has been planted all over China. Canna looks green, can grow to a height of about one meter, and has huge leaves. One hand can't lift it at all. The longest leaf can be dozens of centimeters and the widest leaf can be about ten centimeters. But there are not many flowers in Canna, and the flowers of Canna are on the leaves when they bloom, as if they were held high above the leaves. The branches stand upright, and the red flowers make people notice that it is blooming at a glance. Canna looks different after the rain. Canna's flower language seems to be inconsistent with its whole plant, which is a bit contradictory. Its flower language is a solid future. According to Buddhism, it is a flower that turns into blood from Buddha's toes. This is a big flower.