The Purple Loosestrife is an invasive species that continues to reproduce and slowly being treated. The invasive species of the Purple Loosestrife, or Lythrum Salicaria, is a wetland plant that can produce up to 2.7 million seeds with each plant blooming about 30 flowering stems from early July until early September. From their long flower spikes, they have five to seven pink purple petals with a purple rose flower. This invasive species can grow from anywhere between four feet to ten feet tall. Species that are closely related or often confused to be a Purple Loosestrife include the following: fireweed, blue vervain, blazing stars, and native swamp loosestrife.
Europe and Asia is where the Purple Loosestrife is native, but more specifically traces back to Great Britain, Central Russia, Japan, Northern India, and Southeast Asia. North America was exposed to the Purple Loosestrife around the 19th century and the United States and Canada started to use this invasive species for medicine use. European ships used to carry soil that was a ballast or a heavy material that gave stability and often used to form beds of railroads or roads, and once the ships docked in Northern America that soil was discarded, making the plant introduced into North America. Introduced on the Atlantic Coast of Northern America where this species started growing westward spreading all over Canadian Provinces and every state in the United States, expect for Florida. Popular places where the Purple Loosestrife is located include the following: Great Lakes, and Sioux Lookout, but is also capable of invading pond edges, reservoirs, ditches, and freshwater wet meadows. This plant estimates to be covering 400,000 acres of federal land. One popular promo...
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"Biological Control of Purple Loosestrife." Purple Loosestrife Biological Control. Minnesota Department of Natural Resources, 2014. Web. 02 Feb. 2014. .
Munger, Gregory T. "Lythrum Salicaria." Lythrum Salicaria. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory, 2002. Web. 02 Feb. 2014.
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Purple Loosestrife." Protecting America's Wildlife. National Wildlife Refuge Association, n.d. Web. 02 Feb. 2014.
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Swearingen, Jil M. "Purple Loosestrife." National Parks Service. National Parks Service, 7 July 2009. Web. 02 Feb. 2014.
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Foreign plants which turn into weeds are continuously being introduced to Australia both accidentally and intentionally. They can cause extreme damage to Australia’s environment, as they threaten the survival of many native plants. They are successful in growing as they - usually grow faster than native plants competing for nutrients, water, space etc, they survive better as they do not have the pests and diseases that would normally control them in their natural habitats, they take over the native plants that the native animals use for shelter, food and nesting. The Cobblers peg (Bidens pilosa) also known as farmers friend, Spanish needle and beggars tick was introduced from South America and has become a weed in Australia. Individual flowers are yellow with white petals and do not last for very long, eventually turning into seeds.
The ecological effects of wildfires on Yosemite are among some its greatest benefits. Trees like Bishop Pines and Sequoias have evolved in such a way that their seeds will only open when exposed to high temperatures. The fires also help to clear out dead leaves and weeds, thereby making sunlight accessible to new plants and increasing their chances to germinate (Marder). Wildfires are so essential in areas like Yosemite that over millions of years, plants have developed strategies to be successful in this type of environment. For instance, giant sequoias have developed a thick layer of fire-resistant bark. This bark is “the main explanation for tree survival in intense fires” (Gignoux, Colbert, and Menaut). Fire makes the soil fertile and redistributes the nutrients evenly so that the next generation of trees can cover more space. The fires have helped...
any new plants or the selling of the weed in nurseries and join the Ontario
Australia is a land of rather extreme weather conditions and widely diverse climates that force the vegetation living there to adapt in many interesting ways. Australia is the driest continent, and biomes such as grasslands and savannas are prime sources of widespread catastrophic fires. The plants that grow in the vast arid and semi-arid regions of Australia are prone to fires simply because of the desert climates that they grow in. High temperatures combined with low fuel moisture contents, little humidity and drying winds that sweep across the landscape encourage many of the plants living in these areas to burst into flames at fairly frequent intervals. Serotinous cones, protective bark, intricate underground recovery systems, unique seed distributions and even the necessity of fire for reproduction are just some of the amazing ways that the major plant families which grow in these fire-prone areas have learned to adapt to their environments.
Committee on Senate Energy and National Resources Subcommittee on National Parks. 3 June 2003: ESBCO. Mission Viejo Library., Mission Viejo, CA. 31 July 2005. http://web31.epnet.com/citation.
Rabbit tobacco is also known as lasting, everlasting, sweet balsam, white balsam, feather-weed, and sweet cudweed. Its scientific name is Gaphalium obtusifolium. These annual herbs reach a height of 1 to 3 feet and have erect stems with brown, shriveled leaves persisting into winter and stems covered with felt-like hairs in summer. The leaves are 1 to 3 inches long, and alternate. The flowers, minute in whitish heads, appear in late summer to fall. Fields, pastures, and disturbed areas are the sites of this common native plant of the eastern United States. The Cherokee named it rabbit tobacco because they believe it was the rabbit who took attended the plant.
New York: Greenhaven, 2005. 162-68. The. Print. The. Solley, Bobbie A. & Co.
The National Geographic Society. Nat Geo Wild. N.p., n.d. Web. The Web. The Web. 09 Apr. 2014.
St. John's Wort scientifically known as Hypericum Perforatum, an herbal remedy generally used to treat depression, is making a rise throughout Europe and the United States. St. John's Wort is a perennial plant that produces abundant yellow flowers and grows naturally throughout much of the world, including specifically in northern California, southern Oregon, and Colorado. It usually flowers on “sunlight hills and forest edges” during the summer, between June and August. It was named after St. John the Baptist and is often harvested and in full bloom around St. John's Day, June 24.
Having a backup plan is essential and this medicinal plant replaces many staples in the first aid kit in addition to some other sanitary necessities. Commonly used to create textural interest in border gardens, Wooly Lamb’s Ear, is an adaptable perennial that is quick to spread to other areas of the homestead. Each silvery-green leaf is covered in a light fuzz that is extremely soft. Pale violet flowers bloom late in the season, though they hold little to no medicinal value; however, they do make a nice addition to floral arrangements.
New Found Growth: The Color Purple. New Found Growth, 2001. Web. The Web. The Web.
Rye grass (common name) or L. rigidum (scientific name) is a monocotyledon grass weed found in the Australia grain belt, having high genetic diversity and being described as the world’s most dramatic example of resistance evolution (Powles and Preston 2006). L. rigidum has negatively
Whitted, Q. (2004, September 20). Arts & Culture. Retrieved November 11, 2013, from New Georgia Encyclopedia: http://www.georgiaencyclopedia.org/articles/arts-culture/color-purple
States and southern Canada. In the west, the species was found from Mexico to California.
Wildfires have been a major issue for many years; with the first one being recorded over four hundred and twenty million years ago the world realized they were dealing with an untamable monster. The effects that forest fires have on nature are by far extreme. Wildfire rips across the landscape tearing through and burning every living parcel in its path. If this occurs to often or burns for an excessive amount of time the natural cycle can be thrown out of balance. This equilibrium allows for the best the regeneration of the area and with this disturbance it may be slowed or even stopped. Along with plant life being thrown out of cycle the effects on nature’s creatures is also a major factor. With the loss of the majority of plant life causes the animal’s key food source is lost and many begin to migrate away from the area and into more adequate ones or some just starve to death. On top of losing a food source the anima...