Plants have the right to be share on the communication of their height, stem and also branches. On this parameters, plants have the right to be of 3 types, viz. Herbs, shrubs and also trees.

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Herbs: Herbs are small plants which have soft stem. Examples: Wheat, paddy, cabbage, grass, coriander, etc.

Shrubs: These are bushy and medium- size plants and also they are rather bigger than herbs. Their branches start from just over the ground. Examples: Lemon, Coriander, Henna, Rose, etc.


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Fig: varieties of plants


Tree: These room tall and large plants with hard and also woody stem. A solitary main-stem occurs from the ground. The main-stem is dubbed trunk. The trunk gives out countless branches at certain height. The branches lug leaves, flowers and also fruits. Examples: Mango, banyan, acacia, coconut, poplar, willow, etc.

Some other varieties of plants

Creepers: Plants through weak stem the cannot stand upright and spread on the ground are referred to as creepers. Examples: Pumpkin, Watermelon, sweet potato, etc.

Climber: Plants through weak stem that demands support is called climber. Examples: Grapevine, money-plant, cucumber, bean, etc.


Structure of a typical plant


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Fig: framework of plant


A usual plant has two main parts, viz. Roots and also stem. The stem bears leaves, flowers and fruits.

Root: The underground component of a plant is dubbed root. The is generally pale in colour.

The root system is composed of two varieties of root.Tap root: This is composed of a main root which grows from the base of the stem. Plenty of branches and also sub-branches come the end of the main root (tap root). Examples: pea, radish, carrot, mango, marigold, mustard etc.Fibrous root: In this type, a swarm of slim fibre-like roots arise indigenous the basic of the stem. This roots spread out out in the soil. Examples: Maize, grass, wheat, millet, etc.Functions the RootRoots organize the plant firmly in the soil and thus carry out anchorage come the plant.Roots absorb water and minerals native the soil.

Stem: Stem generally grows over the ground. The stem provides the key structural frame of the plant. The stem bear leaves, branches, buds, flowers and fruits. The point from whereby branches or leaves grow is dubbed node. The portion of a stem in between two continuous nodes is referred to as the internode.

functions of stem The stem gives structural assistance to the plant. It bear branches, leaves, flowers and fruits. The stem dead water and also minerals indigenous the roots to various parts that the plant. Stem gets modified for food storage in part plants, e.g. Potato, ginger, turmeric, etc.

Leaf

The sheet is a thin, flat and green structure which occurs from the node the the stem. The eco-friendly colour of pipeline is as result of the existence of chlorophyll. Chlorophyll is a green-coloured pigment. The level green portion of the sheet is dubbed leaf-blade or lamina. The leaf is attached to the stem by a brief stalk; called petiole.


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Fig: sheet venation


Venation: setup of veins in a leaf is called venation. When the veins do a network prefer structure, the is referred to as reticulate venation, e.g. Pipeline of banyan, mango, jackfruit, etc. Once the veins run parallel to each other, the is referred to as parallel venation, e.g. Pipeline of paddy, wheat, grass, etc.

Stomata: There are many little openings ~ above the lower surface that a leaf. These are referred to as stomata. Stomata enable gases to go into or leave the leaf. Undesirable water is likewise removed with stomata; in the form of water vapour.

Transpiration: lose of water vapour native plants with stomata and lenticels is referred to as transpiration. A significant portion of transpiration happens through stomata.


attributes of leaf Photosynthesis: This is the main function of a leaf. Plants prepare food indigenous carbon dioxide and also water; in the presence of chlorophyll and also sunlight. This process is dubbed Photosynthesis. Breathing: Stomata in leaves also facilitate breath by leaves.

Flower: Flower is the most beautiful and also colourful part of a flowering plant. The is the reproductive part of a plant.

Structure the flower


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Fig: structure of flower


Following room the main parts of a flower:

Sepal: The outer eco-friendly leafy structure in a flower is dubbed sepal. Petals do the an initial whorl that a flower. This whorl is called calyx. The protects the flower at bud stage.

Petals: The coloured leaf-like structures; next to the sepals; are dubbed petals. The bright colour of the petals, attractive insects. This helps the tree in reproduction. The whorl created by the petals is called corolla.

Stamens: around the centre of the flower there room many small stalks with swollen tops. This are referred to as Stamen. It is the male part of the flower. Every stamen consists of a environment-friendly stalk dubbed filament. A capsule-like structure; called anther is in ~ the peak of the stamen. The anther to produce pollen grains. Pollen grains space powder choose particles and take component in reproduction.

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Pistil: the is the female component of the flower. It is a flask- shaped structure in the middle of the flower. The is separated into three parts.


Ovary: The lower broader portion of the pistil is referred to as ovary. It consists of the ovules i beg your pardon take component in reproduction. Style: The narrow middle part of the pistil is called style. Stigma: The sticky end at the peak of the layout is referred to as stigma.