How to classify trees by their leaves


How to Identify Different Types of Trees

Whether you're taking a walk in the park or simply admiring your neighbor's landscape, it's nice to be able to identify different tree species. Who knows? You might want to plant a few of them in your own yard. If you're ready for some fun sleuth work, here's what to look for.

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1: Brzostowska/Shutterstock /2: Peter Turner Photography/Shutterstock /3: Aleoks/Shutterstock

Leaf Identification Type

The starting point for most people when identifying trees species is the leaves. There are three basic leaf types: needles, scales and broadleaf. Most evergreens have needles or scales, while most broadleaf trees are deciduous, meaning they drop their leaves when dormant. However, there are exceptions. Larch has green needles that turn color in fall and drop off the tree. Live oak is an evergreen tree with broad, elliptical leaves.

Try the Arbor Day Foundation’s online tree identification tool.

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Le Do/Shutterstock

How to Identify Trees By Leaf Shape

The shape of a leaf can also give clues when identifying broadleaf tree species. Common leaf identification shapes include ovate (egg shaped), lanceolate (long and narrow), deltoid (triangular), obicular (round) and cordate (heart shaped). There is also the palm-shaped maple leaf and the lobed oak leaf, two of our most recognizable leaf shapes.

Meet 11 trees with great fall foliage.

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Family Handyman, Getty Images (5)

How to Identify Trees By Bark Color

Ask most people to describe a tree’s bark and they’ll say “gray” or “brown” and leave it at that. While many tree species indeed have gray bark, some have bark that is cinnamon (mulberry), pure white (birch), silver (beech), greenish white (aspen) or copper (paperbark maple) in color.

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1: Tooykrub/Shutterstock/ 2: /Dwight Lee/Shutterstock /3: J Need/Shutterstock

How to Identify Trees By Bark Texture

There are many variations in texture between different tree species, as well. Bark can be furrowed (cottonwood), scaly (sycamore), peeling (hickory), smooth (beech), shiny (cherry), papery (birch) or warty (hackberry).

Learn how to make a shade tree thrive.

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Luke Miller/Oldsmobile Trees

Bark Variations With Age

Often the color and texture of the bark change as the tree matures. This is most noticeable on the trunk—the oldest part of the tree. Silver maple, for example, will go from smooth and silver to furrowed and gray and black as it grows older, as the photo shows.

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Jollanda/Shutterstock

How to Identify Trees By Tree Shape

Some trees have a distinctive shape. Think of the vaselike habit of an American elm tree or the pyramid silhouette of a sweet gum. In some cases, the habit changes as the tree matures—often becoming more rounded or irregular—but shape can help with identifying younger trees that are grown in open space (as opposed to a wooded setting, which encourages taller, narrower growth).

You can train a tree’s shape to your liking. See our tree pruning techniques.

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1: m.bonotto/Shutterstock / 2: Roman Kutsekon/Shutterstock

Tree Size and Location: What tree is this?

If you’re trying to identify trees species in a natural setting, you can study the site. Nature knows what it’s doing, distributing trees where they will thrive. Some species, such as willow, are more likely to grow near water. While others, such as black locust, are more upland tree species. A mature tree’s size can also help you whittle down the possibilities. If it’s 60 feet tall and 40 feet wide, you know it’s more apt to be an oak than a dogwood.

Not sure there’s room for a tree in your yard? Meet some space-saving trees for today’s smaller gardens.

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Photo and Vector/Shutterstock

How to Identify Trees By Flowers

While there’s a whole class known as flowering trees (everything from crabapples to magnolias), other tree species have inconspicuous flowers. Either way, flowers can help with identification. First, consider the color (although this isn’t a fail-safe method, since plant breeders have expanded the color palette in the cultivars they have developed). More helpful is to consider when the flower appears and what it looks like. Flower types include single blooms, clustered blooms or catkins (pictured), which are dense hanging spikes that look like tassels. Many trees bloom in spring, but some flower in summer or even early fall, helping you eliminate certain tree species as you investigate.

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Madlen/Shutterstock

How to Identify Trees By Fruit Type

When you think of fruit, you probably think of larger fleshy fruits with seeds inside (apples, pears). But fruit is just a seed dispersal mechanism, so there are other variations to consider. Think of the papery winged fruits of maple, the nuts of chestnut, the acorns of oak, the catkins of willow, the berries of hawthorn and the cones of alder (pictured). All can help you pinpoint a tree species.

10 great trees to consider planting in your yard.

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nevodka/Shutterstock

How to Identify Trees By Seed Comparison

The seeds themselves can help with more specific identification. Say you have an oak tree but you’re not sure what kind. Leaf shape is highly variable on oaks, even on the same specimen. A better indicator may be the acorns. Get your hands on a good guide such as The Audubon Society Field Guide to North American Trees (a mainstay in bookstores for decades). Then compare the acorns to what’s pictured in the guide. You’ll find that acorns can be small (black oak), big (bur oak), oblong (English oak) or barrel shaped (red oak). Some are even striped (pin oak). The cap that partially encases an acorn is also unique in size, shape and texture.

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1: DmitryKomarov/Shutterstock /2: Burakova_Yulia/Shutterstock /3: ANGHI/Shutterstock

How to Identify Trees By Leaf Bud Arrangement

Buds can be helpful in identifying tree species in winter, when deciduous trees are without foliage. Those at the end of a twig are called terminal buds, while those growing along the twig are lateral buds. The arrangement of these lateral buds can help establish a tree’s identity. Alternate buds, found on elms, are arranged in alternating pairs on opposite sides of the stem. The opposite buds of maple are directly facing each other on the stem. And spiral buds whorl alternately around the stem, as seen on oaks.

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Luke Miller/Oldsmobile Trees

How to Identify Trees By Leaf Bud Appearance

Some trees have distinctive buds, such as the sharply pointed buds of beech and the small, clustered buds of oak, which are covered by protective scales. Bitternut hickory is hard to miss—just look for the sulfur-yellow buds when the tree is dormant.

Thinking of planting a tree? Don’t make these tree-planting mistakes.

Originally Published: June 10, 2019

Luke Miller

Luke Miller is an award-winning garden editor with 25 years' experience in horticultural communications, including editing a national magazine and creating print and online gardening content for a national retailer. He grew up across the street from a park arboretum and has a lifelong passion for gardening in general and trees in particular. In addition to his journalism degree, he has studied horticulture and is a Master Gardener.

Tree Leaves - An easy guide to identifying trees by their leaves

Disclaimer: This page contains affiliate links, so I may recieve a small commission if you choose to purchase any item. This will not affect the price you pay, but it will help me keep this site going x

How to identify trees by their leaves

Hello! In this tutorial, we are going to learn how to identify some of our most common tree by their leaves. Specifically, we will learn how to identify leaves by their shape. Are you ready? Lets get started!

(To help make it easier for you, I have divided the leaves into groups, so you can use these quick links to jump where you need to go x)

  • Star-shaped leaves
  • Palmate leaves
  • Spiky leaves
  • Lobed or wavy leaves
  • Pinnate leaves
  • ‘Leaf’-shaped leaves
  • Round leaves

Star-shaped leaves

Norway maple

Norway maple leaves are sharp at the tips compared to field maple and sycamore.

Field maple

Field maple leaves are much rounder at the tips and smaller than Norway maple and sycamore.

Sycamore

Sycamore leaves are softer at the tips than sycamore, but sharper than field maple.

Palmate (hand-like) leaves

Horse chestnut

Horse chestnuts are the most common tree you are likely to find with characteristically hand-shaped leaves.

Spiky leaves

Holly trees have dark, shiny, very spiky leaves. Another spiky shrub (and a garden run away), is mahonia.

Lobed or wavy leaves

Oak trees have distinctively lobed leaves, often very gnarled, spreading branches – and a helpful clue – acorns!

Hawthorn

Hawthorn trees are usually a dense tangle of lichen-covered, shrubs with thorny branches.

Pinnate (or feather-like) leaves

Ash trees have thin leaflets, often more than 5 to a stem and clustered at the tips of the branches.

Elder leaves are rounder than ash and often darker and thicker. In addition, it is a more-shrub-like plant.

Rowan trees have skinny, leaflets with saw-like edges. They also often have white lichen spots on their bark.

Leaf-shaped leaves

Beech tree leaves are quintessentially ‘leaf’ shaped and leathery. They are often slightly wavy around the edges.

Hornbeam

Hornbeam leaves might look like beech leaves, but they have deep  valleys between their veins.

Wych elm

Wych elm leaves can be spotted by their asymmetrical leaf base and their pointy (sometimes 3 pointed) tip.

Round leaves

Aspen leaves are  rounded (sometimes slightly pointed), very  delicate-looking leaves with gently-waving edges.

Hazel leaves are larger than aspen with a marked tip. They are also narrow at the base, wider at the top.

Linden

Linden leaves look like upside down hearts, with a curved base, wide middle and widely pointed tip.

How do you identify trees by their leaves?

Sometimes (but not always) one of the easiest ways to identify a tree is by looking at its leaves. Your clues are the shape, size, margins, tips and bases and arrangement of the leaves. This might sound like a lot of things to look at, but really, usually, you only need to focus on two things – the arrangement of the leaves and their shape. These help you to narrow the leaf down. Then, the extra details like the margins, tips and bases just provide extra clues to help you confirm what it is.

The two types of leaf arrangement

When looking at leaves, I like to start wide and then move in and the best way to start wide with leaves, is by looking at their arrangement and how they attach to the branches or stems. There are two types of leaf arrangement: simple and compound.

Simple leaves are individual leaves, each with their own special connection to the twig or tree branch. While, compound leaves are a group of leaves which join together and share a connection to the tree branch. These can be further divided into pinnate and palmate.

Pinnate-type compound leaves consist of individual leaflets that join along a main stem and attach to the branch via the main stem. While, palmate-type compound leaves are individual leaflets that radiate out and join in one central point, from which a shared stem then emerges to attach them to the tree branch.

Simple leaf

Pinnate leaf

Palmate leaf

Summary

Well… there we go! A summary of how to identify some of our most common trees by their leaves. Hopefully, you should now be able to confidently look at some of our most common leaves and name their tree! (Just remember, there are many, many different trees – all with different leaves – and I have only covered a few of them here.)

P.S. If you did enjoy this tutorial, don’t forget to subscribe below to be notified of new tutorials and Nature Nook events x

P.S. Looking for field guides? Check these out.

Disclaimer: Please note, these guides are affiliate links, so I may recieve a small commission if you choose to purchase any item. This will not affect the price you pay, but it will help me keep this site going x

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What types of trees are divided into

Contents

  • 1 Classification of trees
    • 1.1 Conifers.
  • trees
    • 5.1 Cypress
    • 5.2 Acacia
    • 5.3 Pyramid poplar
    • 5.4 Ash
    • 5.5 Sumac

Trees are a form of woody plants, consisting of root, trunk and crown. In 2015, there were three trillion trees on our planet. Russia ranks first in their number - 640 billion. But every year, due to climate change and deforestation, their number is decreasing.

Tree classification

Conifers.

1. Coniferous (evergreen) - these trees belong to the domain - eukaryotes, the kingdom - plants, the department - conifers. They grow in a temperate climate zone, as they like a moderately warm climate and sufficient moisture. The largest number of species is found in the northern hemisphere. Their sizes can range from dwarf to giant.

In the modern world, conifers are woody plants with one trunk and side branches located on it. These are araucaria, pine and cypress trees such as spruce, cypress, juniper, sequoia, yew, kauri, fir, cedar, pine and larch. If a plant has cones in which seeds develop, and the leaves look like long needles, then it can be safely called coniferous.

Tree (lat. árbor) is a life form of woody plants with a single, distinct, perennial, lignified to varying degrees, persisting throughout life, branched (except for palms) main axis - the trunk.

Tree - classification, structure

Tree - classification, building

Conifers are distinguished by their usually stiff, evergreen needle-like or scaly leaves, called needles or needles, which form cones or juniper berries. This group includes, for example, pines, spruces, firs, larches, cypresses, sequoias.

Broad-leaved trees have broad and flat leaves - which are much less thick than the length and width, usually falling once a year. Broad-leaved (or simply deciduous) trees usually flower and bear fruit. This group includes maples, beech, ash, eucalyptus and others.

In addition to classification by type of leaves, trees are divided according to the life span of leaves - deciduous and evergreen.

Deciduous trees have a clear change of leaf cover: all leaves on the tree lose their green color and fall off, for some time (in winter) the tree stands without leaves, then (in spring) new leaves grow from the buds.

Evergreen trees do not have a clear change of leaf cover: the foliage is on the tree at any time of the year, and the change of leaves occurs gradually, throughout the life of the tree.

In addition to the biological classification, trees are also divided according to other characteristics: for example, fruit trees (the fruits of which are used by humans for food), valuable (the wood of which is used for industrial purposes), shipbuilding (used in shipbuilding), tropical (the range of which lies near the equator ), northern (the area of ​​\u200b\u200bwhich extends far from the equator), and so on.

Three main parts are distinguished in a tree: root, trunk and crown.

The root of a tree is usually the underground part of the plant. The main functions are to hold the tree upright, absorb nutrients from the soil and transfer them to the trunk. The roots have a large length: they can go to a depth of up to 30 meters and to the sides at a distance of up to 100 meters. Some trees have aerial roots that are above the ground, and their function is similar to that of leaves.

The trunk of the tree acts as a support for the crown and also transfers substances between the roots and the crown. In winter, it acts as a store of moisture and nutrients. The tree trunk consists of a core, wood, which grows from the cambium inward, forming annual rings - dark and light areas visible on the cross section of the tree. The number of annual rings in the forests of the temperate zone corresponds to the age of the tree, and their thickness to the living conditions of the tree in each particular year. In dry areas, trees may develop false rings after rainfall. Outside, the trunk is covered with bark. During its life, a tree has, as a rule, a single trunk. When the main trunk is damaged (cut down), sister trunks can develop from dormant buds in some trees. The part of the trunk from the base to the first branches is called the trunk.

Crown of a tree - a collection of branches and leaves in the upper part of the plant, continuing the trunk from the first branch to the top of the tree or shrub with all lateral branches and foliage. There are such characteristics as the shape of the crown - from columnar to spreading and the density of the crown - from dense to rare, openwork. Under the action of light in the leaves as a result of photosynthesis, the synthesis of necessary substances occurs.

The most common tree in the Eastern European part of the country is the pine. No less popular are common spruce and white fir. However, most of the territory is occupied by deciduous plants. To understand what trees are in the country, you need to familiarize yourself with their types and characteristics.

What trees grow in the forest

What trees grow in coniferous and mixed forests is a question that worries many people. Coniferous Russian forests, which occupy up to 70% of the country's area, experience low temperatures and high humidity. Therefore, here the main representatives are spruce, pine, larch. In broad-leaved forests that stretch from the western part of the country to the Ural Mountains, oak, maple, and linden grow. In the mixed forests of Russia, you can find all kinds of trees: poplar, pine, spruce, linden, oak, elm shrub.

Spreading tree in the park

For your information! Trees in mixed forests are considered long-lived.

Types of trees

All trees are divided into coniferous and deciduous. Different representatives of conifers have the following characteristics:

  • are considered evergreen, germinate in Central Russia in moderately humid areas;
  • most often found in the northern regions of the country;
  • have one trunk from which side branches extend;
  • have needle-like leaves;
  • The fruits of coniferous plants are cones, in which subsequent seeds are formed.

Important! Conifers are considered the longest-lived in the world, with an average of 500 years.

The height level varies at around 50 m. Deciduous trees in the Moscow region and other environs of Russia, according to evolutionary standards, were formed later than conifers. Deciduous species can be found in mixed forests. The following types of trees are classified:

  • small-leaved;
  • broad-leaved;
  • evergreens;
  • deciduous.

Such plants have a shorter lifespan, up to 200 years on average. Their sizes vary within 35 m.

Deciduous trees of Russia

Deciduous forest trees include linden, birch, oak, elm. Such vegetation is found in mixed forests throughout Russia.

Linden belongs to the deciduous group of plants.

Large linden in the middle of the field

Geographically, it grows in the European part of the country. Height indicators reach 40 m. The linden crown has a spherical shape, in diameter it can increase up to 20 m. This gives the tree majesty. The leaves are arranged on long petioles in the next order. The leaf plate has a toothed structure and a yellow tint. Linden blossom begins in early July, its duration is up to two weeks.

Please note! Linden fruits, flowers, leaves and bark are widely used in folk medicine and cosmetology. On their basis, healing decoctions and infusions are prepared.

Oak belongs to the Beech subspecies. It grows in the Eastern European part of Russia. The plant has an impressive size. Its length reaches 60 m, and the width of the trunk is kept at around 2 m. The oak has a spherical crown, making it majestic and wide. The bark of the tree has a gray tint, as it develops it turns black. The average life expectancy is 500 years.

Oak has a tap root system, its leaves have different rounded edges and alternate arrangement.

Important! The tree begins to bloom at the age of 40 at the end of spring. Oak fruits - acorns - appear in early to mid-September.

Elms are deciduous, wild-growing trees, reaching a height of 30-40 m. At the same time, the width of the trunk increases to 2 m as it grows. Sometimes elm is found in the form of shrubs. The crown of the plant most often has a cylindrical shape, but sometimes it is also spherical. Elm lives up to 120 years. In history, cases of his life expectancy up to 400 years were recorded.

Birch

Birch grows in the northern and central latitudes of the country. This plant is suitable for growing in suburban areas. Birch grows up to 40 m in height, lives up to 150 years. The leaf shape of the plant is round with serrated edges. Inflorescences in the form of flattened earrings. Birch is not picky about growing conditions, so sand, clay, stones can be used to plant it.

A lonely birch in the center of a green field

Pay attention! In spring and summer, the plant produces juice, which is widely used in folk medicine. Based on the leaves and buds of birch, various decoctions and infusions are made that help to cope with many diseases. From the wood of the plant, plywood and wooden toys are made.

Coniferous trees of Russia

Coniferous species include evergreen types of plants: spruce, cedar, pine, larch. These are Russian trees that have needle-like leaves and cone-shaped fruits.

Norway spruce can be found throughout the Russian Federation. Its average height reaches 35 m. However, there are plants and higher, up to 50 m. Spruce has a cone-shaped crown, which begins almost at its base. The trunk of the plant has an average thickness of up to 1.3 m. Spruce grows in coniferous forests up to 300 years. Hares feed on spruce cones; during the flowering period, they begin to dance around the trunk and collect fallen seeds. Spruce is considered the main attribute of the New Year holidays; in winter, its fluffy branches are covered with frost and snow.

The tree is characterized by flattened needles, the length of which varies within 4 cm. Their shade is green. If spruce grows in open areas, then its branching begins almost at the base.

Important! If the tree is in closed forests, then the crown occupies the upper part of the plant, and its trunk becomes bare.

Pine

The Pine family is considered a long-liver among conifers (up to 800 years). The length of the pine reaches 50 m in height, the width of the trunk is up to 1 m. Branching begins at a distance of 2 m from the base of the tree. Pine is characterized by gray bark, which is covered with characteristic cracks. The crown has the shape of a pyramid. There are bunches of needles on the branches, the length of each of them is up to 15 cm. Birds feed on seeds in winter and summer, in order to get prey, the birds must quiet down and carefully make their way to the intended target.

Pine is often used in folk medicine. Its unopened kidneys contain a large amount of vitamins, essential oils and tannin. These elements help to cope with many chronic diseases.

Cedar is an evergreen plant that reaches 40 m in height. The width of its trunk is up to 2 m. On average, the cedar lives for about 500 years.

The crown of the tree has a multi-vertex shape. Needles up to 16 cm long grow on branches. Cedar cones are ovoid in shape, their length reaches 13 cm. Each cone contains up to 140 cedar fruits. Birds feed on the rest of the seeds. They store them for the winter to survive the frost. Store fruits of a cedar and people. They help to cope with many diseases. To do this, they take a branch so that it twitches, swing it a little and collect the fruits that have fallen to the ground.

Larch

Larch is a tree that can be found on the territory of the Urals and in the temperate continental regions of the country.

Ripe fruits on larch branches

Plant height 50 m, cone-shaped crown. Young larch has a smooth bark, an adult one has cracks on it. The average lifespan of a plant is 500 years. Larch needles have a gray coating, on small branches it grows in bunches.

Southern tree varieties

Southern trees are characterized by good resistance to drought, abundant rainfall. These plants grow in regions with a hot climate. The list of trees includes poplar, apricot tree, cypress, sumac. They grow in plant nurseries or in summer cottages and suburban areas.

Cypress

Cypress is an evergreen fast growing species. Cypress is a perennial tree that grows up to 25 m. The plant can take the form of a shrub up to 2 m long. The main growth of cypress occurs in the first years of its life. Further, it increases by several centimeters every year. The life expectancy of cypress is up to 2000 years. Its trunk is straight or slightly curved, the bark is smooth, with time it acquires a furrowed structure. The leaves of the plant are scaly.

Important! Cypress is capricious in care, so it needs to be fertilized periodically, to do preventive vaccinations.

Acacia

White acacia is a plant that belongs to the legume family and grows in the south. Acacia can be shrubby and woody. The height of the tree is up to 30 m, the width of the trunk is up to 2 m. The acacia has a wide crown, which spreads over several meters. The leaves of the tree are long, within 25 cm, pinnate. The fruits of the plant are beans, having a length of up to 6 cm. Each of them contains about 8 seeds. Their ripening begins in mid-late September.

Pyramidal poplar

Pyramidal poplar belongs to the Willow family. Its length varies within 40 m, and the width of the trunk reaches 1 m. Poplar has a pyramidal crown, its flowering begins in late April and early March. Average life expectancy is 300 years. Poplar has a smooth gray bark and a well-developed root system. Because of this, the growth of poplar occurs quite quickly. The leaves of the plant are diamond-shaped, and its flowers are combined into long catkins.

Ash

Ash is a deciduous tree species. Its height can reach 40 m. The shape of the crown is rounded, the branches of the tree are directed upwards.

Lone ash with a spherical crown

The trunk is cylindrical. Ash leaves are an inflorescence of 10-15 small green leaves. The fruits of the plant, lionfish, grow up to 5 cm. At first they have a green tint, then they turn brown. Flowering begins in spring, after a long winter sleep.

Important! Ash is undemanding to growing conditions, so it can exist even in swampy areas.

Sumac

Stag horn sumac has another name - vinegar tree. This is a plant that belongs to the Sumach subspecies. For the first time the plant, according to the encyclopedia of trees, appeared in North America. Sumac looks like a palm tree. Its crown is spreading, umbrella-shaped, the leaves are dissected. The trunk has a brown tint. Leaves are red.

Important! The inflorescences of the tree are crimson in color and resemble chestnuts in appearance.

Russia is a beautiful country with diverse vegetation. In its open spaces you can find coniferous, deciduous trees. Each of them has its own characteristics, size and life expectancy. Many plants are used in folk medicine together with various herbs and cosmetology for the treatment of female and male pathologies. The names of all trees in alphabetical order can be seen in special reference books, which describe their detailed characteristics.

Types of tree leaves and how to identify them? ▷➡️ Postpost

The leaves of the trees, as well as their bark and size, allow us to distinguish them from each other. Each leaf of the tree has its own characteristics, we can say that they are the fingerprints of these huge plants. In this article, we will show you everything you need to know about these silent workers.

Index

  • 1 leaves of trees
  • 2 Parts of leaves of trees
    • 2.1 petiole
    • 2. 2 Strails
    • 2.3 Broadcasting
    • 2.4 Vershi
    • 2.5 Home
    • 2.6 Assault rising
  • 3 Classification of trees
  • 4 Names of trees
      9000 4.1 due By the shape of the top
    • 4.3 By the shape of the base
    • 4.4 By the edge of the leaf
  • 5 Tree leaves depending on the type of tree

Tree leaves

Thanks to the leaves of trees, you can get such a vital element as oxygen. Hence their great job, they are responsible for fixing carbon dioxide during the process of photosynthesis to help clean the air and provide life with oxygen. Not only do they work to create the ideal environment, but they also help keep the plant alive, because thanks to the leaves and the process of photosynthesis, it can grow and breathe.

Tree leaf parts

Each tree has its own imprint, represented by its leaves, which have unique characteristics for each species. For this reason, it is necessary in principle to know the parts that make up the leaves of trees, and thus to be able to understand their classification.

petiole

This refers to the base that connects the branch to the plant stem or leaf base. It is a thin cylindrical structure that can sometimes be tiny or non-existent.

Stipules

It is formed on each side of the leaf base of the vascular plant, that is, they have a sap transport system, they can vary in shape and size, usually they are on every leaf, and its function is to protect the leaf primordium and when it reaches its development, it tends to disappear.

Origin

Also called the lamina, it refers to the flat part in which the upper part of the face is called the ray, which appears darker in color while the underside of the face becomes lighter. Classification according to the edge of the leaf blade: smooth or entire, lobed, serrated, split, split or serrated.

Top

This is the name given to the upper end of the leaf, i.e. opposite to the base. This is not always well defined as it will depend on the leaf shape.

main vein

This refers to all the nerves found in the leaf, the sap circulates through this vasculature and thus communicates with the rest of the plant.

Axillary bud

The axillary bud is the attachment point between leaf and stem and is specialized in producing shoots that can reproduce or simply remain dormant.

Classification of tree leaves

The leaves of trees will be determined by the environment in which they are found and hence by the shape their leaf takes to achieve the best adaptation. Here's how the different sheet types are grouped:

  1. By the way
    • Simple: this is where one leaf is born on each petiole, that is, one leaf.
    • Compound: These are those in which several articulated leaves, called leaflets, are formed.
  2. ribbed
    • Uninervia: these are those that have one central nerve and are very common in trees such as pines.
    • Plurinervia: unlike the previous one, this one has a branching of the nerves.

Names of tree leaves

Tree leaves are classified according to shape, edge, veins and appearance. It is intended to list each characteristic here, which will help you locate each leaf by its appearance.

Due to the shape of the blade

In this classification you will find different shapes that can be present in the leaves of trees, considering that it refers to the flattened part that performs the function of photosynthesis. Each form is described below:

  • Ensiform: This is when the blade is shaped like a sword and ends in a point.
  • acicular: It is acicular, long and sharp, ending in a well-defined apex.
  • Filiform: This is a very thin and thin sheet, similar to thread.
  • Linear: The blade is very narrow and thin with parallel edges.
  • Evasion: This type of blade has an arrow-shaped or oval shape.
  • Oblong: Oval, longer than wide.
  • Oval: It has an elliptical shape.
  • Diamond: This type of sheet has the characteristics of a diamond.
  • Ovada: It has the shape of an egg, its base is wider and ends with a well-defined apex.
  • Obovate: Unlike the ovoid, this one ends in a wide top.
  • Co rdada: This sheet is presented in the shape of a heart.
  • Accepted: Its shape is an inverted heart.
  • Deltoid: Similar to a Greek letter, wide at the base and thin at the top.
  • Round: It is presented in a round shape.
  • kidney-shaped: Shaped like a kidney.
  • Spatulate: This leaf has a peculiar spatulate shape, thin at the base and wide at the top.
  • Flabellate: It is presented as a fan.
  • Panduriform: The shape of this leaf is wide at the base and widens towards the top, resembling a guitar.
  • Lira: This type of leaf is wide at the base, narrows in the center and widens towards the top.
  • started: The sheet of this type is divided into deep lobes and curved towards the base, while the upper edge is the same convex, and the lower one is straight.
  • Updated: This is a pointed leaf with two diverging lobes at the base.
  • sweep: It looks like an arrow and has two sharp petals at the base.

According to the shape of the top

The top is the end of each leaf, that is, the tip furthest from the base. He informs us about the state of the plant. Apical death is associated with weather, tree root problems, overuse of fertilizers, pollution, and other elements. Here we present the classification of the apex according to its shape:

  • Pointed: This is when the end of the blade is a well-defined point
  • Sharp: The end of the blade looks like a sharp corner.
  • pointed: This is when the blade is elliptical and ends abruptly in a thin point.
  • Apiculate: This shape can be described as a apex that delicately blends into a fine point.
  • Tailed: It is presented as an elongated tail-like shape.
  • Pointed: It is thinner than pointed, as the top is shaped like a fine dot.
  • Mucronat: The apex is shaped like an apex, i.e. an almost imperceptible dot.
  • Macronulate: This is apical, but even smaller.
  • Obtuse: Elliptical blade with an obtuse apex.
  • Rounded: The top of the sheet is completely rounded.
  • Truncated: When presented almost straight, as if cut open.
  • Reuse: The blade appears semi-straight or notched with a very small tip.
  • cut out: The sheet has a small hole in the top, but is very light.

Due to the shape of the base

The base of tree leaves is the enlarged part that connects the petiole to the stem. In some cases, separate appendages of various shapes are found. The base is classified by shape as follows:

  • Acute: When the base of the leaf near the petiole forms an acute angle.
  • O
  • Pointed: This base starts as a perfect triangle.
  • darkened: The blade decreases in width until it reaches the stem.
  • Cuneiform: In this case, the sides of the blade go straight to the petiole.
  • kidney-shaped: It is very similar to chordates, but less pronounced, becoming more kidney-shaped.
  • Updated: This is when two diverging lobes form at the base.
  • sweep: It does not diverge, but it does not diverge like a gastada.
  • Ear: Two small, less pronounced lobes form at the base of the leaf.
  • rounded:
  • Truncated: Blade almost directly adjacent to petiole.
  • Uneven:
  • Oblique: In this case, the leaf blade is attached to an irregular petiole.

Edge of sheet

The edge, also known as the blade, is the shape or appearance of the blade that makes each type of tree leaf unique and recognizable. The most common are:

  • All: In this case, there is no element that distinguishes the sheet, as it is rendered smoothly.
  • finely serrated: He was closely watching the tiny beaks, resembling a serrated knife.
  • Sawn: It is a kind of not very pronounced peaks.
  • Double sawn: It is very similar to sawn, but the peaks are more pronounced and there is a cavity between them.
  • Create: It is very similar to sawing, but not in the form of a spike, but slightly wavy.
  • Lobular or lobulated: It has the shape of well-defined lobes, concave outward and convex inward.
  • Sinuous or scalloped: The attachment points of the edges form notches and concavities.
  • Curly: It represents outer concavities and inner convexities, but in a very sublime way.
  • Subcategory: It looks like it's being eaten away by an irregular shape.
  • erosive: This looks like a wavy shape, but these waves are unevenly represented.
  • Serrated or spiky: It is shaped like a scalloped edge but more spiky to protect the plant from herbivores.

Tree leaves depending on tree type

The leaves of the trees will also depend on the climate, geographical location and condition of the plant. Trees can be divided into three large groups: evergreen, ornamental and fruit trees.