What is the difference between a solitary plant and a counterpart

If there is a leaf on the same part of the stem (that is, on a wheel), it is solitary, and if there are two leaves facing each other on the same wheel, it is opposite.

A leaf that grows on the same node of the stem is solitary.

On the same node of the stem are two opposite leaves.

The same section is the same section of the stem.

The leaves that grow around the circumference of this segment belong to the same wheel.

The leaves of the opposing plants grow in pairs, and the solitary plants grow one by one.

Most species of the family Rhinocerosidae are opposite, such as Rhinoceros and Lilac are single-leaved opposites, and Ash is pinnate compound leaves.

Most species of the honeysuckle family are single-leaved opposites, but there are also pinnate compound leaves of the elderberry genus.

There are many common species of Euonymus in the family Euonymus, all of which are single-leafed opposites.

The species of Cornus and Hydrangea are also mostly single-leaved opposites.

There are not many species in the family Waxaceae, all of which are single-leaved opposites.

Most of the above families are woody, and there are many pairs of herbaceous plants.

Like most species of the Caryophyllaceae, some genera such as Purple Jasmine in the Purple Jasmine family are single-leafed.

Solitary plants should be called "monocots" and counterplants should be called "dicots".

All angiosperms can be divided into two main groups, namely dicots and monocots. The fundamental difference between them is the development of two or one leaves in the embryo of the seed, two are called dicots, and one is called monocots. The former are such as apples and soybeans; The latter are like rice, corn.

These two types of plants are relatively easy to distinguish because there are some distinct morphological differences between them. The root system of dicots, which is basically straight, has a well-developed taproot; Many are woody plants, and the stems tremble and the skin can continue to thicken; The leaf veins are reticulated; The number of sepals and petals in the flower is 5 or 4, and if the petals are combined, there are 5 or 4 lobes. The root system of monocots is basically fibrous root system, and the taproot is underdeveloped; Mainly herbaceous plants, woody plants are few, and the stems usually do not thicken year by year; The leaf veins are parallel veins, and the number of sepals and petals in the flower is usually 3, or a multiple of 3.

The above differences make it easier to distinguish between monocots and dicots.

In the whole angiosperms, the species of dicots account for 4 5 of the total, and in addition to almost all trees, there are many fruits, melons, fibers, oil plants, and many vegetables; Monocots have a large number of food plants, such as rice, corn, barley, wheat, sorghum, etc.

The leaves grow in pairs, alternates, whorls, and clusters.

The part of the stem with leaves is called a node, and a node of a clove branch has two leaves opposite each other, which is the opposite leaf inflorescence. The part between two adjacent segments is called an internode. The part between the leaf and the stem is the leaf axil, and each leaf axils have axillary buds.

There are apical buds at the tips of the branches. After the leaves fall off, the marks left at the nodes are called leaf marks.

The way the leaves are arranged on the stem, each node has one leaf for alternate, two leaves for opposite, three leaves or more for rotation, the stem is very short and dense, and there are more than two leaves on it for clusters.

The leaves are solitary and multi-finger chains search for well-developed petioles, and the leaves are directly born on short stems, while the stems of plants are very underdeveloped and almost invisible.