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Plant Diversity in the Temperate Grassland Biome

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Rachel Habegger

on 18 March 2010

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Transcript of Plant Diversity in the Temperate Grassland Biome

Plant Diversity in the Temperate
Grassland Biome What's the most
Important plant? Grass like...
purple needlegrass
blue grama
buffalo grass
wild oats Flowers and Plants hundreds of species of flowers
grow among the grasses... These grasses are not alone... asters
blazing stars
wild indigos
But what about shrubs and trees? Trees and Shrubs? not much to speak of... Why can grasses survive,
but not trees and shrubs? Adaptations This resistance to wild fires and grazing is due to short point of growth
and underground root bulbs. Q & A... What adaptations have the grasses made
in order to exist in the temperate grassland
biome? These grasses have adapted to the environment with deep, massive root systems which reduce erosion and perserve water during periodic drought, which is common in this biome. Large, woody trees and shrubs can't survive conditions like
forest fires and grazing animals, although
cottonwoods, oaks, and willows can survive
in river vallies. Grass is the most abundant plant in the temperate grassland biome. Now for some questions... Small plants and flowers grow well due to the rapid decomposition
of humus (the organic part of the soil), which is abundant in this biome What in the soil allows for the growth of flowers? Grasses are monocots, which means that their seeds have one cotyldon. Their flowers are not very showy because their pollen is spread by the wind. Important plants like milkweed (bottom right) can have a special
relationship with certaim animals. For instance, insects such as the monarch catapillar and milkweed bugs have adapted to eat milkweed, a toxic plant, and use its toxins to produce useful poisons. What is one example of a plant that helps an insect survive?
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