What are the shapes of autumn leaves?

1, fan-shaped, like a fan of Ginkgo biloba leaves, like a fan, with a long handle and light green.

2, narrowly lanceolate, bamboo leaves narrowly lanceolate, 7.5 ~16cm long and1~ 2cm wide, with a tapering apex, a blunt base and a petiole about 5mm long, with smooth edges on one side and small serrations on the other.

3, needle-like, slender as needles, such as Pinus tabulaeformis leaves, needles in a bundle of 2, dark green, thick and hard, long 10- 15 cm, with a diameter of about 1.5 mm, with fine serrations at the edge and stomatal lines on both sides.

4. Round, the leaves of nasturtium lappa are round, with a diameter of 3- 10 cm. There are 9 main veins, which radiate in all directions from the place where the petiole was born. The edge is wavy and shallow, and the back is usually sparsely hairy or has milk bumps.

Extended data:

With the coming of autumn, the weather is getting colder and colder, and people's appetite is getting better and better. However, many people still keep the original habit of skipping breakfast and eating more at dinner. In this dry autumn, it will do great harm to the human body, so it is very important to change the diet. Experts remind that three meals a day should be eaten on time as much as possible, so that the spleen, stomach, liver and gallbladder can operate rhythmically to avoid food accumulation and indigestion.

The autumnal equinox is a solar term representing seasonal changes. On the day of the autumnal equinox, the sun is located at longitude 180 degrees, and the sunlight is almost direct to the equator, and day and night are almost equal. At this time, the waiting temperature in the southern region has generally dropped below 22℃, and it has entered a cool autumn. "An autumn rain and a cold". The cold air from the south meets the warm and humid air that gradually decays, which leads to repeated rainfall and the temperature drops again and again. In the northern part of the northwest plateau, the daily minimum temperature has dropped below 0℃, and you can already see the magnificent snow scene flying all over the sky and the earth wrapped in silver.