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dandelion invasive species

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Bianca Chaaya

on 23 April 2013

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Transcript of dandelion invasive species

How has the dandelion affected North America? Dandelions are a very resilient species. Their deep twisted roots, called taperoots make the dandelion very hard to completely remove and if not removed properly it will regrow quickly. They also compete with grass in their surrounding area.
In society dandelions are seen as pests. however, it has become much more difficult for North Americans to remove dandelions because it has become illegal to use certain pesticides to kill them. dandelions can
be used for
purposes aswell
as a nutrient
filled food. dandelions dandelions How far did dandelions travel? dandelions DANDELIONS AN INVASIVE SPECIES Dandelions originated in Europe and Asia.
The dandelion is an introduced plant to North America.
In the mid 1600s, European settlers brought the dandelion, (scientific name, Taraxacum officinale) to eastern America and grew it in their gardens for food and medicine.
Since then it has spread across the continent as a weed. Dandelions can spread very easily due to their sphere of seed bearing parachutes. Thats how they spread all across North America. DANDELIONS ARE MEDICINAL continued... continued... Dandelions were brought here for a purpose ! Dandelions were brought to North Americans by settlers because they are a nutrient food and are very medicinal. they were also popular because could withstand harsh weather conditions and grow in tight spaces. that would be a major factor factor because the trip to North America. This can also be seen as a con by people today because they grow through sidewalks and on lawns. Start Finish The roots of the dandelion are filled with a slightly smelly, milky substance that is used today to treat warts. Traditionally, dandelion roots and leaves were used to treat liver problems. Native Americans also boiled dandelions in water and took it to treat kidney disease, swelling, skin problems, heartburn, and upset stomach. Today, the roots are mainly used as an appetite stimulant, and for liver and gallbladder problems. Dandelion leaves are also used as a diuretic to help the body get rid of excess fluid. dandelions dandelions The removal of the weeds. http://www.naturewatch.ca/english/plantwatch/dandelion/dandelion_id.html There hasn't been a major governmental project towards the removal of the dandelion however the citizens of North America are trying to find more ways to kill these unwanted "pests" http://www.learningherbs.com/news_issue_33.html How to get rid of these weeds The first way and most labour intensive is to pull the weed out of the ground, right from the root. However if you leave one piece of the root in the ground it WILL grow back!!! http://madisonvillearts.org/Pictures/139910-Weed-Puller-action-juni09.jpg http://4.bp.blogspot.com/-F3Svv8rB1RI/T8jHP0wJveI/AAAAAAAAAJg/Rz4OEBsPk8Q/s1600/weeding.jpg CONTINUED.. The second way to remove dandelions is using herbicides;

Organic: Vinegar
Weed-B-Gon (brand name), with the active ingredient
Roundup (brand name), with the active ingredient, glyphosate http://3.bp.blogspot.com/_7eWmN_GMlhk/S_VhqpTFrHI/AAAAAAAAALI/MAZunX62IuI/s200/EcoSense+Weed+B+Gone.jpg http://www.superbuysonline.co.uk/roundup-fast-acting-weedkiller-1182-p.asp CONTINUED... The final way to remove dandelions is Decapitation: remove the heads from the dandelions while they are still yellow flowers; preventing them from getting to the germination phase (a puffball of a thousand seeds). This can impede dandelion proliferation. http://www.donosborn.com/homebrew/dandelion2.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Dandelion_sun.jpg/466px-Dandelion_sun.jpg Facts about dandelions!!! http://www.herbalextractsplus.com/images/herbs/dandelion-bsp.jpg http://1.bp.blogspot.com/-btfgmQ0A8Pc/UV7rfcIYb9I/AAAAAAAADuw/vRHGRXchAo0/s320/Dandelion+tattoo+meaning+(3).jpg dandelions Interesting Facts!!! The name dandelion is taken from the French word “dent de lion” meaning lion’s tooth, referring to the coarsely-toothed leaves.

Dandelions are perennials which means that the same dandelion can last for years! They also have one of the longest flowering seasons of any plant.

Dandelions are self pollinating plants. After it's yellow flower wilts seeds form and are often carried as far as 5 miles from their origin! http://upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Dandelion_sun.jpg/466px-Dandelion_sun.jpg dandelion timelapse
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