Plant Encyclopedia | Better Homes & Gardens

Vine, Plant whose stem requires support and that climbs by tendrils or twining or creeps along the ground, or the stem of such a plant. Examples include bittersweet, most …

WHO monographs on selected medicinal plants

Increasing role of the WHO monographs on selected medicinal plants Over the past two decades, there has been a tremendous increase in the use of herbal medicine; however, there is still a significant lack of research data in this field. Therefore since 1999, WHO has published three vol-

Plants and Animals Category | Encyclopedia.com

The surface of the earth is covered with plants and animals, and we cover many of them in this category. Starting with plants, we explore agriculture and horticulture. Agriculture is the science of producing plants and livestock from the natural resources …

Germination - Wikipedia

Germination is the process by which an organism grows from a seed or similar structure. The most common example of germination is the sprouting of a seedling from a seed of an angiosperm or gymnosperm.Germination also includes the growth of a sporeling from a spore, such as the spores of Fungus, ferns, bacteria, and the growth of the pollen tube from the pollen grain of seed plants.

Plant - Simple English Wikipedia, the free encyclopedia

Flowers and pollination. Flowers are the reproductive organ only of flowering plants (Angiosperms).The petals of a flower are often brightly colored and scented to attract insects and other pollinators. The stamen is the male part of the plant. It is composed of the filament (a stalk) that holds the anther, which produces the pollen. Pollen is needed for plants to produce seeds.

Plant nutrition - Wikipedia

Plant nutrition is the study of the chemical elements and compounds necessary for plant growth, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite.

Definition of cable plant | PCMag

The wires and connectors used to tie a network together. See outside plant and CMTS. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission ...

Wildflower | plant - Encyclopedia Britannica

Wildflower, any flowering plant that has not been genetically manipulated. Generally the term applies to plants growing without intentional human aid, particularly those flowering in spring and summer in woodlands, prairies, and mountains. Wildflowers are the source of all cultivated garden

plant - Kids | Britannica Kids | Homework Help

Hundreds of thousands of different species, or kinds, of plant grow on Earth. Some plants are so tiny that people can hardly see them. Others are trees that grow as tall as skyscrapers.

Differentiation in Plants - Biology Encyclopedia - cells ...

Differentiation in plants refers to the processes by which distinct cell types arise from precursor cells and become different from each other. Plants have about a dozen basic cell types that are required for everyday functioning and survival. Additional cell types are required for sexual reproduction.

A Guide to Common Medicinal Herbs - Health Encyclopedia ...

A Guide to Common Medicinal Herbs. Here's a look at some of the more common medicinal herbs. Most herbs have not been completely tested to see how well they work or to see if they interact with other herbs, supplements, medicines, or foods. Products added to …

root | Definition, Types, Morphology, & Functions | Britannica

Root, in botany, the part of a vascular plant that is normally underground. Its primary functions are absorption of water and dissolved minerals and conduction of these to the stem, storage of reserve foods, and anchorage of the plant. Learn more about the types of …

Gardening for Beginners, a Free Encyclopedia of Garden ...

The Garden Helper is a free gardening encyclopedia and guides to growing and caring for gardens, plants and flowers. Helping gardeners grow their dreams since 1997. No-dash-here, you've found The Real Garden Helper! Gardening on the Web since 1997

nuclear energy | National Geographic Society

Nuclear energy is the energy in the nucleus, or core, of an atom. Atoms are tiny units that make up all matter in the universe, and energy is what holds the nucleus together. There is a huge amount of energy in an atom's dense nucleus. In fact, the power that holds the nucleus together is officially called the "strong force."Nuclear energy can be used to create electricity, but it must first ...

Plant - definition of plant by The Free Dictionary

Define plant. plant synonyms, plant pronunciation, plant translation, English dictionary definition of plant. n. 1. Botany a. ... Encyclopedia; Wikipedia ... To station (a person) for the purpose of functioning in secret, as by observing, spying, ...

Root Facts for Kids - Kids encyclopedia facts

The roots of a plant is the part that is buried in the soil.Roots are always under the soil, though–sometimes roots can be above the ground. This is called an aerial root.. Also, stems can sometimes be under the soil (potatoes, for example).Roots do not have leaves, and are different from stems inside.. Plants need their roots especially for three reasons: The roots take water and nutrients ...

plant - Students | Britannica Kids | Homework Help

Robert Glusic/Getty Images. Starches and sugars, the foods that plants make and store for their own growth, are also the fundamental nutrients that humans and other organisms need in order to live. In North America the chief food plants are cereal grains. (The word cereal comes from Ceres, the Roman goddess of agriculture.) Major cereal crops include corn (maize), wheat, oats, rice, barley ...

Bell Bomber | New Georgia Encyclopedia

Georgia's remarkable economic progress in the late twentieth century started with the influx of federal dollars for welfare and defense during the administration of U.S. president Franklin D. Roosevelt.. The decision to place Bell Bomber in Marietta was the result of fortuitous circumstances and a generation of dynamic local leaders determined to bring their community out of the Great ...

Leaf | Encyclopedia.com

Leaf. A leaf is a plant organ which is an outgrowth of the stem, and has three main parts: the blade, a flattened terminal portion; the petiole, a basal stalk which connects the blade to the stem; and the stipules, small appendages at the base of the petiole. However, the leaves of many species lack one or more of these three parts.. Leaves function in photosynthesis, or the biological ...

Plant Introduction: Purpose and Procedure | Botany

ADVERTISEMENTS: In this article we will discuss about:- 1. Purpose of Plant Introduction 2. Procedure of Plant Introduction 3. Agencies 4. Merits and Demerits 5. Achievements. Plant introduction is a process of introducing plants (a genotype or a group of genotypes) from their own environment to a new environment. The process of introduc­tion may involve […]

Fertilizer, understanding the three basic components of ...

Understanding the fertilizer analysis is essential when choosing the right fertilizer to purchase and apply. Fertilizers, such as 10-20-10, are identified on their package by their chemical analysis. The three numbers on the bag or container refer to the percentages of nitrogen, phosphorus, and potassium components in the fertilizer.

invasive species | National Geographic Society

An invasive species is an organism that is not indigenous, or native, to a particular area.Invasive species can cause great economic and environmental harm to the new area. Not all non-native species are invasive. For example, most of the food crops grown in the United States, including popular varieties of wheat, tomatoes, and rice, are not native to the region.

Houseplant | Better Homes & Gardens

Growing houseplants is a wonderful way to add attractive foliage and flowers to indoor spaces. There's a houseplant for every living space, from small-scale terrariums to miniature trees. Every type of houseplant has particular growing requirements as well as preferences for sun and moisture. The Houseplants section of the Better Homes and Gardens Plant Encyclopedia can help sort out any ...

Rice | Encyclopedia.com

Rice. Rice, arguably the world's most important cereal grain, is a plant with a long and complicated genealogy. Although plant scientists divide the rice genus (Oryza) into four principal complexes comprised of about twenty-five species, only two species are important for human consumption and use: O. sativa and O. glaberrima.Of these two cultivated species of rice, O. sativa is by far the ...

Leaf - Simple English Wikipedia, the free encyclopedia

A leaf is an above-ground plant organ and it is green. Its main functions are photosynthesis and gas exchange. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. Most leaves have stomata, which open and close.They regulate carbon dioxide, oxygen, and water vapour exchange with the atmosphere.

Plant - Wikipedia

Medicinal plants, also called medicinal herbs, have been discovered and used in traditional medicine practices since prehistoric times. Plants synthesise hundreds of chemical compounds for functions including defence against insects, fungi, diseases, and herbivorous mammals.Numerous phytochemicals with potential or established biological activity have been identified.

Cell | Encyclopedia.com

Cell. The cell is the smallest living component of organisms and is the basic unit of life. In multicellular living things, a collection of cells that work together to perform similar functions is called a tissue; various tissues that perform coordinated functions form organs; and organs that work together to perform general processes form body systems.

DK Science: Medicinal Plants - Fact Monster

Many plants produce special substances in their roots, leaves, flowers, or seeds that help them to survive. For example, some plants make nasty-tasting substances to defend themselves against plant-eating animals. Since earliest times, people have gathered these substances to …