What are the differences between grass and trees, and what are the main differences between big tree

First of all, it is necessary to know that grass belongs to herbaceous plants, and trees belong to woody plants.

Herbaceous plants have grassy or fleshy stems with underdeveloped xylem, and most of their aerial parts wither in the same year. The xylem of the plant body is less developed to underdeveloped, and the stems are juicy and softer.

Woody plants have obvious secondary growth phenomena, which make the stem thicken, which is called woody stem; The vascular bundles of woody plants have vascular bundle cambium, and the cells of the cambium have meristem ability, which can produce new xylem inward and new phloem outward every year, so that the stem thickens year by year. However, the xylem is more than the phloem every year, and the older phloem will be squeezed out by the new xylem and phloem, death and peeling, so the growth of the phloem is often not obvious, but the xylem is thickened year by year, and the so-called wood refers to the xylem.

The most significant difference between herbaceous plants and woody plants is the structure of their stems, the stems of herbaceous plants are "grassy stems", and the stems are densely packed with many relatively small vascular bundles, which are filled with a large number of parenchyma cells between the vascular bundles, and in the outermost layer of the stem is a tough mechanical tissue. The vascular bundles of herbaceous plants are also different from woody plants, the woody part of the vascular bundle is distributed on the outside and the phloem is distributed on the inside, which is completely opposite to woody plants, and the vascular bundles of herbaceous plants do not have a cambium layer and cannot grow continuously, so the tree will become thicker year by year and grass and bamboo do not have such ability. Grassy stems are more evolved than woody stems.

Appearance, character, quality, obligation, role...

The main differences between large trees and small grasses are the difference in the height of the plant, the thickness of the stem, the softness and hardness of the texture, and the shape of the leaves.

1. The height of the plant is different.

The tree has a distinctly erect trunk, and the plant is generally tall and branches are high above the ground, allowing for the formation of a crown. The grass plants are short and often form tight clumps.

2. The thickness of the stem is different.

The stem of the tree is called the trunk, which is thick but very hard, and is often used in furniture manufacturing and building materials. The stems of the grass are soft and slender.

3. The shape of the leaves is different.

The leaf shape of large trees is oval, such as camphor tree, rubber tree, wood rhinoceros, tea tree; palm-shaped, like the leaves of sycamores; fan-shaped, like the leaves of ginkgo; rhomboid, such as the leaves of the water chestnut and the black tree; lanceolate, such as the leaves of peach, willow, bamboo.

The leaves of the grass are narrowly linear, often folded into needles, 1-6 cm long and mm wide.

1. Big trees belong to woody plants, while small grasses belong to herbaceous plants, which are two different categories in plants.

2. Big trees have the characteristics of annual rings, which are a layer produced by the growth of trees in a year, which appear in the cross-section like one (or several) wheels, surrounding the same wheels produced in the past.

There is a clear seasonality, and only one growth ring is produced in a year, which is the age of the tree, also known as the tree's growth rings. And the grass does not have the characteristic of growth rings.

3. The types of big trees are different from the types of small grasses: big trees include bread trees, wine-making trees, toothbrush trees, spindle trees, etc.; Small grasses include large glazed grass, clover, large flowered grass, dog's tail grass, lavender, perfume white palm, red candle grass, sorrel, white axle grass and so on.

Small grasses, like large trees, have the common characteristics of living organisms.

The main differences between large trees and small grasses are the height of the plant, the thickness of the stem, and the texture.

Both large trees and small grasses grow in the soil, both have green leaves, both flower and bear fruit, and both need water, sunlight and air.

Same characteristics: it grows in the soil, needs sunlight, water, has rhizomes and leaves, and some will flower and bear fruit with seeds.

Different characteristics: The plants of the large trees are tall. The stem is thick, very hard, long-lived perennial, and is a woody plant; The grass is a dwarf plant and is an annual herbaceous plant.

Same: both are plants in nature; Adjectives are added before species; All have life; Both possess green leaves; will blossom and bear fruit; All need moisture, sunlight and air; are grown in soil.

Different: Species are different; The adjectives in front are different, one is big and the other is small; different heights; The thickness of the stems varies.

The height is different! You didn't even think of that, wow, it's stupid.