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Trees
Above ground, trees and shrubs perform important environmental services by providing food and shelter to people and wildlife, oxygenating the air, and beautifying the landscape. Below ground, their roots open up critical passageways for the movement of air, moisture, and soil food web members.
10,768 Questions
Why are conifers not tied to water for reproduction?
Conifers have pollen grains that are dispersed by wind, allowing them to reproduce without relying on water for fertilization. This adaptation allows conifers to thrive in a variety of environments, including those with limited access to water.
How old is the General Sherman tree?
The General Sherman tree in Sequoia National Park is estimated to be around 2,200 years old. It is the largest known living single stem tree on Earth by volume.
It's dependent on the level of chlorophyll in the leaves plus any other pigments that are present to give natural colouring that evolution has deemed good for the longevity of the species. Evergreens tend to be darker as the needles (rather than leaves) are deisgned to reduce water loss through transpiration, so they have a smaller area through which to photosynthesise. trees 'retract' the cholorophyll in autumn before the leaves fall off, as it is expensive to make so they draw it back into the plant before the rest of the leaf falls off - that's why leaves go brown.
Why did your white birch tree bud in spring and then the buds died off?
Image Courtesy Canadian Forest Service
The birch tree miner is a threat to a birch tree and it is the larvae of the birch leaf miner which causes damage by burrowing into birch leaves in search of nutrients. The first indications of birch miner infestation are small green spots on the leaf surface, usually noticeable in May or June, which develop into ugly brown splotches. A birch leaf miner infestation rarely kills birch trees on its own but it is disfiguring and can weaken a tree. The leaf miner season begins in late April to mid May with eggs laid in slits on the upper surfaces of birch leaves. Of the number of pests which are attracted the birch trees, the bronze birch borer is the most important as it is both lethal and difficult to control. Evidence of borer infestation is a progressive thinning of the crown of the tree beginning at the top. Trees generally die after about two or three years, that is, after two or three infestations by the larvae. If caught early enough, there are insecticides available to prevent new infestations of the borer but these will not kill larvae already active in the tree. Insecticides such as dormant oil control only the egg stage. Trees with advanced crown loss will not benefit from insecticide use and should be removed. The good news is that healthy, well-situated, well-maintained birches are more resistant to the borer. Females prefer to lay eggs in the sunlight and are less attracted to trees whose trunks are shaded. The insects are also attracted to tree wounds and so care should be taken to avoid damaging the bark of trees.
Image Courtesy Canadian Forest Service
What is The strangest feature about the rimu tree?
The most distinctive feature of the rimu tree is its unique fruiting behavior. It produces separate male and female cones on the same tree, with the female cones taking over a year to mature before releasing the seeds. This long maturation process is quite unusual compared to other tree species.
When was the first Redwood tree discovered?
The first documented discovery of a coast redwood tree (Sequoia sempervirens) was in 1769 by explorer Gaspar de Portolá in California. However, indigenous peoples had long been aware of and living among these majestic trees.
Hemlocks can grow to be quite large, reaching heights of up to 70-80 feet with a spread of about 25-35 feet. Some varieties, like the western hemlock, can grow even taller, reaching heights of over 100 feet. It's important to consider the specific species and growing conditions when estimating the size of a hemlock tree.
What is Manitoba's official tree?
The official tree of Manitoba is the White Spruce.
Popular and easily-recognized, the White Spruce, Picea glauca, is able to survive in virtually all climatic and environmental regions of Manitoba. Most well-known as a traditional 'Christmas' tree, the white spruce is often cultivated for that purpose.
How long can a Northern Hack berry Tree live?
I have 4 that are doing just fine at age 65
The elderly woman we bought the farm from 5 years ago planted them as a young bride.
They have stood up to 75 mph winds several times since we have been here and many many times to 45-50 mph winds with no broken branches. This is in western Nebraska panhandle. It is a great tree for this area.
Special problems the baobab tree faces in to survive in its habitat?
Special problems that the Baobab tree faces to survive in its habitat include drought and fire. These trees can store water in their trucks but they often go without rain for nine months of the year. Fires are also common in their habitat.
Which season leaves fall from the trees?
Leaves fall from the trees in the autumn season. This is typically triggered by shorter days and cooler temperatures that cause trees to stop producing chlorophyll, leading to the colorful display of leaves changing and ultimately falling off.
Why are some horse chestnut tree flowers pink?
Some horse chestnut tree flowers may appear pink due to variations in genetic expression or environmental factors. This color variation is not common across all horse chestnut trees, and it may be a result of hybridization, mutation, or simply natural variation within the species.
What tree has large spikes on the trunk?
The silk floss tree, also known as Ceiba speciosa, has large spikes on its trunk. These spikes are used for protection against browsing animals and are a distinctive feature of the tree.
Are pygmy date palms poisonous?
Pygmy date palms (Phoenix roebelenii) are not considered toxic to humans or pets. However, ingestion of any plant material may cause mild stomach upset in some individuals. It's always wise to prevent pets and small children from ingesting any plant material as a general safety precaution.
Yes, holly is an evergreen plant, meaning it retains its leaves throughout the year. Holly is known for its distinctive glossy, spiky leaves and bright red berries, making it a popular choice for holiday decorations.
The tallest tree in Arkansas is?
The tallest tree in Arkansas is 120 feet high and 14 wide and 143 feet around. It is located at the White River National Wildlife refuge and is a Bald Cypress tree.
How long does it take for a koala to get up a tree?
Koalas are slow climbers and can take several minutes to climb a tree, depending on the height and difficulty of the ascent. They use their strong limbs and claws to grip the tree trunk as they move upwards.
Pine cones grow every other year?
Pine cones typically take two years to mature and release their seeds. In the first year, the pine cone develops, and in the second year, the pine cone opens to disperse its seeds. This two-year cycle allows the pine tree to ensure successful reproduction.
How deep are the roots of the mugo pine?
Mugo pines have shallow root systems that typically spread out rather than going deep. The roots can extend up to 2-3 times the width of the tree canopy.
What is the English version name of the kawakawa tree?
The English version name of the kawakawa tree is the "New Zealand pepper tree."
Is a cedar tree a monocot or a dicot?
Neither, because it is not an angiosperm (flowering plant). A monocot (monocotyledon) is an angiosperm with one cotyledon (seed-leaf) while a dicot (dicotyledon) is an angiosperms with two cotyledons (seed-leaves). Western red cedars are gymnosperms. A gymnosperm has "naked seeds" meaning that the seeds (ovules) are not found in an ovary but rather on leaves, scales or in cones.
What are the names of coniferous trees in Canada?
Canada is a Very large nation, with thousands of different plants and trees in different areas- fat too many to give a listing here. Pick a section of Canada and start looking at plant life in THAT section. The Bay of Fundy will be very different from islands in the far north or far west.
What is the main difference between a buttercup and an oak tree?
The main difference between a buttercup and an oak tree is their size and classification. Buttercups are small flowering plants belonging to the genus Ranunculus, while oak trees are large woody plants belonging to the genus Quercus. Additionally, buttercups belong to the buttercup family (Ranunculaceae), while oak trees belong to the beech family (Fagaceae).
