What is the stem such as the pine?

Characteristics of pine stems: Pine trees belong to erect stems, and those whose stems grow upright vertically on the ground are called erect stems. When the pine trees are young, the crown is pyramid-shaped, and the branches are mostly in the shape of a wheel.

After the seedlings are unearthed and the cotyledons are born, the first ones are primary leaves, solitary, spirally arranged, linear-lanceolate, and the leaf margins are toothed.

It takes 1 3 years for the primary leaves to function as leaves, and needles appear, usually in bundles, at the tips of short branches. Each bundle of needles has leaf sheaths at the base, which fall off or remain in the early stages. The position of the resin tract in the mesophyll tissue is relatively constant in adult plants, and can be divided into three types: exophytic, mesophytic and endophytic.

Characteristics of the pine tree:

1. The branches are straight.

The peculiarities of the pine tree are manifested in the branches. Pine trees are evergreen trees or shrubs, and in the process of growth, their branches are always in an upright and straight state, even if the plant is skewed due to external factors, it will grow in the direction of skew, and the branches will not bend.

2. Evergreen in all seasons.

The peculiarities of the pine tree are manifested in the leaves. In the process of growth, the leaves of the pine tree are green all year round, although the leaves will fall in all seasons, but after the leaves are dropped, new leaves will grow for growth, and the pine tree is tall and can grow to a height of 75 meters.

3. Strong drought resistance.

The characteristics of pine trees are manifested in their habits. The leaves of the pine tree are needle-shaped, and this shape helps the plant to reduce water consumption, which makes the pine tree more resistant to drought, and the pine tree has more branches and leaves, which can absorb moisture from the air and use it for its own growth.

The stems of pine trees are woody, and the stems of elephant tails are herbaceous.

Like the pine tree has many stems and is woody, like the stem of the dogtail grass is herbaceous.

The stems of the pine tree are vertical, the crown of the young tree is pyramidal, and the bulbs are unisexual and monoecious. Pine tree characteristics: leaf characteristics, pine leaves are solitary when they are born, and the edges will have fine serrations; Growth characteristics, pine leaves are in a green growth state all year round, and the leaves will fall off after they grow; Longevity, pine trees also have a long lifespan, most varieties have a lifespan of more than 100 years.

The stems of pine trees are vertical stems that grow upwards perpendicular to the ground, and the crown is pyramidal in the young stage, and the branches are mostly in rotation. The cones of the pine tree are unisexual and monoecious, and the cones are mostly composed of seed scales, which will be lignified when they are ripe, and will open after a period of maturity, and the seeds will fall immediately.

1. Blade characteristics

The leaves of the pine tree are solitary at birth, arranged in spiral disks, linear-lanceolate, with serrated edges and needle-like, often 2 or 3 or 5 needles in a bunch. The needle-shaped leaves help the pine tree reduce nutrient consumption, increase the plant's own drought resistance, and the abundant branches and leaves allow the pine tree to absorb water from the air and maintain its own growth.

2. Growth habits

The leaves of pine trees grow green all year round, and although they fall off throughout the year, new leaves are grown after they fall. And the overall growth rate is fast, the plant size is high, and it can grow up to a height of 75 meters, which is very spectacular.

3. Longevity

Pine trees also have a long lifespan, many varieties of pine trees have a lifespan of more than 100 years, some varieties can bear fruit after 5 to 6 years of maintenance, and some need to be maintained for decades to bear fruit. In addition, pine trees are also extremely adaptable to the environment, with a maximum temperature of 50 and a low temperature of -60.

Like a long, thin needle.

Pine trees are wheel-shaped branches, with long internodes, relatively thin and straight branches or slightly curved downwards, and slender needles in bundles. Its canopy looks fluffy and not compact, and the word "pine" is a visual description of its canopy characteristics. Therefore, "pine" is a type of tree with a fluffy crown.

Pine trees are sturdy and have a very long lifespan.