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Caterpillars - District of Saanich
Caterpillars - District of Saanich

... they reach the full size for their species. Then they wander away to find a protected place, often in soil or debris, to change into an immobile stage called a pupa. Inside the pupa, the caterpillar transforms into a moth or butterfly. Tent caterpillars, fall webworms, winter moth and ermine moths h ...
Temperate Rain Forest
Temperate Rain Forest

... used for baskets, rope, mats, and clothing. The wood was used for plank long houses, canoes, paddles, and many other types of tools. A tincture can be made from the fronds that is a topical antifungal medicine. • Adaptations- The truck and roots have to be thicker or they will die in the Temperate R ...
American Scientist - Department of Neurobiology and Behavior
American Scientist - Department of Neurobiology and Behavior

... that will cascade through the ecosystem, affecting mice, birds and other wildlife for years to come. Over far-flung areas virtually all the oaks of the same species, and perhaps more than one species, are already gearing up to produce the seed crop of the decade. Or not. In fact, there may be almost ...
MAGNOLIA - Deciduous
MAGNOLIA - Deciduous

... Deciduous Magnolias are truly magnificent, bringing a spectacular show of flowers in late winter to liven up the garden and remind us that spring is just around the corner. These elegant blooms sit on bare branches which develop green foliage in spring. Magnolias produce a beautiful fragrance in add ...
Wild and Wacky Plants of the NWT
Wild and Wacky Plants of the NWT

... Mountain avens is one of the first plants to grow in rocky or gravelly places where there are few other flowers. The leaves are small and leathery with white hairs on the undersides; the white flowers have eight to ten petals. Mountain avens blooms early in the season. The blooms are replaced by tuf ...
dogwood trees - Farmington Gardens
dogwood trees - Farmington Gardens

... What are the differences in the types? Cornus florida ‘Rubra’ is the standard pink flowering dogwood that you see everywhere. Cornus florida is native to the Eastern U.S. and has numerous cultivars available. It will flower before the leaves come out in spring. Unfortunately, Cornus florida is also ...
Cotinus obovatus Raf. (Smoke
Cotinus obovatus Raf. (Smoke

... entire. Leaves turn orange to scarlet in the fall (Figure 2). Flowers bloom in early spring, are very small, and have five petals and five sepals that are greenish in color, with five stamens and one pistil. Separate male and female flowers are present on the same plant. The wispy panicles measure 1 ...
OF plumeria - Plumeria 101
OF plumeria - Plumeria 101

... rubra and P. obtusa are susceptible, but some of the uncommon species appear to be resistant. While fungicides specific for rust control are effective, they are not normally used, as the disease rarely is severe enough to damage the plant. A black sooty mold develops on stems and leaves when scale i ...
ringtail possum
ringtail possum

... their dreys in the canopy of Peppermint trees [and other trees] with twigs and leaves they collect using their prehensile tails. Ringtails are also known to nest in hollows of large old trees or in the undergrowth where it is particularly dense and provides protection from predators. In urban areas ...
Japanese Barberry (Berberis thunbergii) Japanese Knotweed
Japanese Barberry (Berberis thunbergii) Japanese Knotweed

... stems. Cup-shaped leafy structures surround the stem at nodes. Flowers are small and white, with deep blue fruits in the fall. ...
Spruce Beetle Quick Guide
Spruce Beetle Quick Guide

... responsible for the death of more spruce trees in North America than any other natural agent. Spruce beetle populations range from Alaska and Newfoundland to as far south as Arizona and New Mexico. The subalpine Engelmann spruce is the primary host tree, but the beetles will infest any spruce tree s ...
Chinaberry - Texas Invasives
Chinaberry - Texas Invasives

... Mexicans as the “soap tree.” Also, extracts from Chinaberry have been used as natural pesticides. Though the uses of Chinaberry are many, they do not outweigh the negative impacts produced by this invasive species. Chinaberry has very few diseases, grows at an extremely fast rate (5-10 feet each yea ...
Prunus Accolade sheet
Prunus Accolade sheet

... The incredible blooms of Prunus Accolade hail the beginning of spring at Deepdale Trees. ...
Chapter 11
Chapter 11

... allowing for subsequent invasion of jack pine and white pine trees. Various types of black oak forests that differ in understory and ground cover eventually replace these short-lived pine trees. Pioneer herbs and ...
The Oak Tree - CBS Sexton Street Primary School
The Oak Tree - CBS Sexton Street Primary School

... This energy is used to set up a chemical reaction which makes carbohydrates. The carbohydrates are like simple sugar, or glucose, which provides the basicfood for plants. For photosynthesis to occur, the plant must possess chlorophyll (green part of leaf) and must have a supply of carbon dioxide and ...
- Government of Nova Scotia
- Government of Nova Scotia

... means the study of living things and their relationship to each other and their environment, home, or community. This study can be on global scale. World forest ecology is the study of forests throughout the world, and their relationship to each other and the earth as a whole. The term ecology can a ...
Tree Descriptions - Sherburne Soil and Water Conservation District
Tree Descriptions - Sherburne Soil and Water Conservation District

... Upright form with spreading branches that form a dense canopy. Leaves are deeply lobed. Very fast growing tree. Can produce seeds as early as age 11. Very popular landscape tree because of its growth rate and tolerance to a variety of conditions. Drought tolerant. Hardy to zone 3. ...
northeastern shrub and short tree identification
northeastern shrub and short tree identification

... and the original detailed drawings, diagrams, and photographs make this book a useful reference source for naturalists and vegetation managers. While most of the photographs were collected from across New York and Massachusetts, the ranges for most species extend throughout the northeast and into th ...
The Peppered Moth - Ahmad Shah Idil`s HSC Notes
The Peppered Moth - Ahmad Shah Idil`s HSC Notes

... observed that Peppered moths in the unpolluted countryside were still predominantly lighter coloured. Later, when the negative effects of pollution were recognised by the general community, the government passed various Clean Air legislations, and the levels of soot upon the bark began to decline. T ...
stargirl11
stargirl11

... 5. How much of the Sahel has been destroyed since the 1970's? Why?-30% because its trees got cut down for fire wood. And without trees rainfall slackens and soil erodes more easily from wind and water. 6. What is the climate like in the Sahel?-Hot and dry year-round 7. What is the average temperatur ...
Growth and Production of Rubber
Growth and Production of Rubber

... trees which are old enough, leaves are shed at the beginning of the dry season, terminal buds of branches grow rapidly and trees are temporarily bare of leaves, a condition known as “wintering”. New leaves are then produced at the proximal end and inflorescences in the axil of scale leaves and lower ...
ID Trees of Nova Scotia - Nova Scotia`s Eastern Shore
ID Trees of Nova Scotia - Nova Scotia`s Eastern Shore

... DBH - diameter of the tree at breast height; a common measure of tree trunk thickness at about 4 ft from the ground. Deciduous - see “Hardwood.” Fruit - a mature plant ovary; contains seeds. Hardwood - a term commonly applied to broad-leaved or deciduous trees; although some may be evergreen, they ...
ID Trees of Nova Scotia - Government of Nova Scotia
ID Trees of Nova Scotia - Government of Nova Scotia

... DBH - diameter of the tree at breast height; a common measure of tree trunk thickness at about 4 ft from the ground. Deciduous - see “Hardwood.” Fruit - a mature plant ovary; contains seeds. Hardwood - a term commonly applied to broad-leaved or deciduous trees; although some may be evergreen, they ...
Wetland Field Guide - Bahamas National Trust
Wetland Field Guide - Bahamas National Trust

... many small, vertically growing “breathing roots” that rise from them. This forms a carpet of finger-like structures around the plant called pneumatophores. The pneumatophores contain lenticels and are usually long enough to stick up above the water surface at high tide to help “breathe”. Generally, ...
Has woody vegetation in a semi-arid savanna changed after 11
Has woody vegetation in a semi-arid savanna changed after 11

... The fieldwork was carried out in the Mokolodi Nature Reserve 24°45´S, 25°55´E, 15 km south of Gaborone in south-eastern Botswana. The reserve is about 4500 ha and fenced to keep wild animals in and livestock out. It was traditionally grazed by local livestock, and later served as a cattle ranch with ...
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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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