Types of leafs

From the point of view of biology, leaves are animportantpart of plants that have specific functions: one of them is photosynthesis. Theleaves are generally blade-like in shape and arise from the lateral parts of the branches and even from the stems. The parts that make up the leaves are the sheath, the blade and the petiole.

On other occasions, those that sprout from the flowers and that we commonly know as petals are known as leaves. That’s one way to tell them apart. Up to here we speak from the biological or botanical point of view of the concept of leaf. Of course the term is applied to other fields that we will review later and that are part of our Spanish language.

From the point of view of commerce, sheets are distinguished from that form of paper where all the information considered necessary in the company itself is written. That is, the sheet is a type of material that is used to write, draw and even perform a series of numerical accounts on it. Due to the way in which the sheets are presented, other functions are given to them.

It can be, for example, stapled in a group to give a single unit to a writing, they can for the same purpose, be grouped within a folder or folder and even bound together. The sheets can be white or colored and legal letter sizes or another format. They can be squared or have a type of hatching.

Kind of leafs

Leaves through limbo

Composite Leaves

In this case, we find that the leaves have a limb, and when there is a division in the leaves, it occurs from the main nerve of the leaf. This situation causes various groups or sections to appear, as happens with the leaflets. This type of leaves occurs less frequently than simple leaves.

Simple Leaves

This type of leaves has the particularity of the fact that in relation to the blade, it arises without giving a form of partition. In the event that they occur split, which usually happens, the division generally does not occur in relation to the root of the leaf. Within this type are the acicular, cordiform, ensiform, spatulate leaves; among other.

Leaves at their base

Sharp leaves

As its name suggests, in this case the leaves are directly related to the stem, generating an acute angle.

Dim Leaves

It occurs when the leaves are close to the base and tend to taper together.

Auriculate Leaves

In this case, the leaves are directly related to the presence of auricle forms near the base.

Cordate Leaves

The shape of this type of leaves is related to the heart, in relation to the base of the leaf itself.

Cuneate Leaves

They usually have a wedge shape near the base of the leaves. The edges turn out to be convergent, as well as being straight.

Oblique leaves

In relation to the part of the petiole, the edges of the leaves are not attached to them.

Round leaves

The base of the leaves is given in a circular or semicircular shape in most cases.

Truncated Leaves

These leaves generally present a transverse shape at the base of the same.

Leaves by their veins

Palmate leaves

These have as their main characteristic the fact that they have two or more nerves that are considered main. These in turn branch off other nerves that are known as secondary.

Palmineered Leaves

In this case, the branching system of the petiole is shown in completely different veins.

Parallellined Leaves

The nerves usually appear parallel within the leaves because these have their point of origin on the petiole.

Penninervous Leaves

The leaves usually have a central nerve in their conformation, from where other nerves will emerge as a branch.

Leaves by the margin

Serrated leaves

The margins are shown as pointed, tooth-like figures.

Whole Leaves

They generally have a very smooth margin in their shape.

Lobed leaves

The leaves have the particularity of being represented in a wavy way.

Leaves through limbo

Heart-shaped leaves

This is the name given to those leaves that have a certain resemblance to the shape of a heart.

Elliptical Blades

This is the name given to those leaves that have a certain resemblance to the figure of the ellipsis.

lanceolate leaves

The figure shown by these blades bears a resemblance to spears.

Linear Sheets

In this case we find something that is very similar to a long and thin ribbon.

Oval Leaves

Their figure is represented in an oval way and it is easy to distinguish them from the rest.

Leaves by petiole

Petiolate leaves

As its name warns, it is the leaves that have the petiole within their morphology.

Sessile leaves

Contrary to the previous case, in this case the leaves do not have the petiole, so the leaves are born directly from the limb of the branch.

Leaves by stem type

Alternate Leaves

Due to the way in which their growth develops, they create a series of knots on the stem with other leaves.

Opposite Leaves

Their growth is contrary to the direction of the other forms of leaves and they are usually attached to the stem.

Whorled leaves

The shape that they show to nature is similar to the rings, in relation to the edge of the leaf itself and they are generally grouped with others.