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some common jamaican trees - The Natural History Society of Jamaica
some common jamaican trees - The Natural History Society of Jamaica

... Bamboos are really giant grasses with straight hollow, jointed, smooth stems. Bamboos seldom flower and do so once in 30 to 100 years, depending on the species. After blooming the stems tend to die allowing new shoots to spring up from the base of the old plants. Young plants can also grow from seed ...
Flowering Trees for South Florida - Miami
Flowering Trees for South Florida - Miami

... Tree Definition • Tree: A woody perennial plant having a single usu. Elongate main stem generally with few or no branches on its lower part. • Treelet (treelike). Having two or more small trunks with few or no branches on their lower parts. • Standard: A bush made into a small tree by creating a si ...
Taproot system - Napa Valley College
Taproot system - Napa Valley College

... Interaction between 2 organisms (plant-plant, plant-microbe, plant-fungus, etc.) ...
Buffalo Niagara RIVERKEEPER 57
Buffalo Niagara RIVERKEEPER 57

... Flowering Dogwood (Cornus florida) Sun Requirements: Full sun to part shade Soil Requirements: Rich, well-drained soils Mature Height: 12-36 feet Wildlife Value: Attracts birds and butterflies Garden Use: Flowering Dogwood is considered one of the most spectacular native flowering trees. White flowe ...
SRP Plant ID Guide
SRP Plant ID Guide

... Description: The American beech is a tall and wide tree. The mature tree size is anywhere from 90 to 100 feet. It grows best in deep, rich, moist, well -drained soils. The bark that grows on the tree is very smooth, pale and gray. The leaves are bright green and are about three inches in length. The ...
Dutch elm disease
Dutch elm disease

... • More destructive – Within 10 years it had killed 70% of elms in Britain – By the 1990s it had killed 85% – Virtually wiped out the English elm ...
Narrow pointed opposite leaves. Flowers are identifiable with their
Narrow pointed opposite leaves. Flowers are identifiable with their

... shrub that grows up to 6m tall. There are four varieties of this organism. The bark is gray and the leaves are gray green and vary in size based on their location. The tree bares frut that are round and segmented into threes. The flowers are small and cream colored ...
Tuart and weed Guide - Friends of Trigg Bushland
Tuart and weed Guide - Friends of Trigg Bushland

... is a smooth leaved erect perennial to 80cm tall, much branched from the base. The leaves are long and narrow, 1-4cm long and minutely toothed. The flower is at the top of the stalk, yellowgreen, and produced in summer. Produces a very toxic and irritating milky sap when cut. ...
Myroxylon balsamum - World Agroforestry Centre
Myroxylon balsamum - World Agroforestry Centre

... Gum or resin: M. balsamum’s var. balsamum and pereirae yield gums called tolu and Peru balsam, respectively. These gums are used mainly as flavouring in cough syrups, soft drinks, confectionaries, ice cream and chewing gums. Essential oil: Balsam gum contains about 60% cinnamein, a volatile oil extr ...
Tree diversity and economic importance of forest trees of Kashmir
Tree diversity and economic importance of forest trees of Kashmir

... Keywords: Jammu & Kasmir, Biodiversity, Prunus, Pinaceae @2013 BioMedAsia All right reserved ...
savanna - cloudfront.net
savanna - cloudfront.net

... soil is shallow, or in valleys where clay soils become waterlogged in wet weather. A third type of savanna, known as derived savanna, is the result of people clearing forest land for cultivation. Farmers fell a tract of forest, burn the dead trees, and plant crops in the ashes for as long as the soi ...
International Paper Forestry Lesson 4
International Paper Forestry Lesson 4

... well as height growth. The ways trees reproduce will be touched on lightly in this objective. a. Trees increase in diameter as a ring of many cells of xylem is laid down by division of the cambium layer. The rate of growth depends on many factors such as: species, spacing, overabundant rainfall or d ...
To dwellers in a wood, almost every species of tree has its voice as
To dwellers in a wood, almost every species of tree has its voice as

... ‘stalk’ of the leaf) and the lamina (commonly known as the blade). The space between the point where a leaf attaches to the petiole and the next node up on the stem (or out and away from the main stem) is called an axil. A bud is an embryonic shoot that, under the right conditions, grows into anothe ...
Welcome to the Centennial Nature Trail
Welcome to the Centennial Nature Trail

... Twin Buttes and Perins Peak are held up by buff-colored, cliff-forming Point Lookout Sandstone. The grey rock exposed on lower slopes is unstable Mancos Shale. Below Twin Buttes is a 60,000- to 80,000-year-old river terrace. This and some lower, more northerly terraces are composed of glacial outwas ...
Propagating Tropical Fruit - Miami
Propagating Tropical Fruit - Miami

... involves joining a piece of a mature tree (scion) to a seedling (rootstock). The scion will become the new trunk and branches of the tree and the rootstock will become the root system. Some trees, such as mangos, will produce roots using air-layers, but the roots will not be strong enough to maintai ...
lesson 6: plant reproduction
lesson 6: plant reproduction

... so they will end up with multiple seeds. (Our “average” flower picture had only one ovule, so it would make only one seed.) While the ovules are turning into seeds, the ovary will change, too. In some plants, such as berries, tomatoes and grapes, the ovary becomes a soft fruit, while in other plants ...
Ferns are a primitive group of land plants that first appeared in the
Ferns are a primitive group of land plants that first appeared in the

... Ferns, characteristically, have well developed fibrous roots, stems (rhizomes) and green leaves (fronds) connected by a vascular system that is not present in mosses or liverworts. This was integral to ferns moving away from lakes, streams, bogs and rivers to ...
Tree Diseases and disorders, Geauga Parks District, 2009
Tree Diseases and disorders, Geauga Parks District, 2009

... two species of Nectria fungi associated with this disease. It should be noted that the bark openings created by these scale insects are, however, like an open door to any number of other saprophytic or pathogenic bacteria or fungi, which are certainly able to initiate wood rots or other species of w ...
Terrestrial Biomes
Terrestrial Biomes

... thereby, a longer period of time for plant growth. The annual rainfall in tropical wet forests ranges from 125 to 660 cm (50200 in) with some monthly variation. While sunlight and temperature remain fairly consistent, annual rainfall is highly variable. Tropical wet forests have wet months in which ...
Avocado Growing in the Florida Home Landscape
Avocado Growing in the Florida Home Landscape

... prolonged dry periods (e.g., 5 or more days of little to no rainfall) newly planted and young avocado trees (first 3 years) should be well watered twice a week. Once the rainy season arrives, irrigation frequency may be reduced or stopped. Once avocado trees are 4 or more years old irrigation will b ...
Canopy cover estimates for individual tree attributes
Canopy cover estimates for individual tree attributes

... viewpoint than classical indicators such as forest land area or numbers of trees. An example is the difference between area of forest land and area of forest land with canopy cover. At first glance, one may assume that all forest has canopy cover. However, this study has shown there to be an approxi ...
Specific Weed Control
Specific Weed Control

... glyphosate (eg Roundup Biactive)** Citronella Oil (Barrier H)** dichlobenil (Casoron G)** *** susceptible ** moderately susceptible * suppression only Red highlight: Amenity &/or Total use only - not around trees ...
Lemon Growing in the Florida Home Landscape1 - EDIS
Lemon Growing in the Florida Home Landscape1 - EDIS

... 1. This document is HS1153, one of a series of the Horticultural Sciences Department, UF/IFAS Extension. Original publication date December 2010. Revised November 2016. Visit the EDIS website at http://edis.ifas.ufl.edu. 2. Jonathan H. Crane, professor, tropical fruit crop specialist; UF/IFAS Trop ...
Termites, vertebrate herbivores, and the fruiting success of Acacia
Termites, vertebrate herbivores, and the fruiting success of Acacia

... determinants of plant growth, survivorship, and reproduction. However, plant reproduction is likely to be the product of responses to a suite of abiotic and biotic factors, including nutrient availability and interactions with antagonists and mutualists. In a relatively simple system, we examined th ...
Alder- Common or Smooth
Alder- Common or Smooth

... tend to be ovate to elliptical in shape with toothed and lobed edges. They are pinnate and simple, and are alternate. They are green above and a light yellow-green and ...
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Tree



In botany, a tree is a perennial plant with an elongated stem, or trunk, supporting branches and leaves in most species. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a woody trunk and branches as a way to tower above other plants to compete for sunlight. In looser senses, the taller palms, the tree ferns, bananas and bamboos are also trees. Trees tend to be long-lived, some reaching several thousand years old. The tallest known tree, a coast redwood named Hyperion, stands 115.6 m (379 ft) high. Trees have been in existence for 370 million years. It is estimated that there are just over 3 trillion mature trees in the world.A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically contains woody tissue for strength, and vascular tissue to carry materials from one part of the tree to another. For most trees it is surrounded by a layer of bark which serves as a protective barrier. Below the ground, the roots branch and spread out widely; they serve to anchor the tree and extract moisture and nutrients from the soil. Above ground, the branches divide into smaller branches and shoots. The shoots typically bear leaves, which capture light energy and convert it into sugars by photosynthesis, providing the food for the tree's growth and development. Flowers and fruit may also be present, but some trees, such as conifers, instead have pollen cones and seed cones; others, such as tree ferns, produce spores instead.Trees play a significant role in reducing erosion and moderating the climate. They remove carbon dioxide from the atmosphere and store large quantities of carbon in their tissues. Trees and forests provide a habitat for many species of animals and plants. Tropical rainforests are one of the most biodiverse habitats in the world. Trees provide shade and shelter, timber for construction, fuel for cooking and heating, and fruit for food as well as having many other uses. In parts of the world, forests are shrinking as trees are cleared to increase the amount of land available for agriculture. Because of their longevity and usefulness, trees have always been revered and they play a role in many of the world's mythologies.
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