I know it’s not a weed…Big bluestem(andropogon gerardii) which is a plant from the tall grass prairies(Weldon Springs State Park-Clinton,IL-yes the “Prairie State”).The tall grass prairies covered millions of acres of America’s heartland just 200 years ago.Also these prairies extended from the Gulf of Mexico north into Canada and from Illinois to the Rockies.The tallgrass prairies were the result of the glaciers retreating 8,000 years ago from the Midwest.From that time till about 3,000 years ago the climate was hotter favoring the grassland as the woodlands retreated.The grasses got very tall-3 to 6 feet tall sometimes 9′- as they liked the rich black soil.Scientists have classified the prairies into various classes and the Big Bluestem seemed to like the “mesic” sites.These were the sites that had a lot of vegetation growing.This grass just did not hold moisture but was used by the Native Americans for digestive problems.Any way the rest is history as man’s reluctant drive used up the prairie to further his advancement.Thanks to the field guide-“Tallgrass Prairie Wildflowers”

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3 thoughts on “I know it’s not a weed…Big bluestem(andropogon gerardii) which is a plant from the tall grass prairies(Weldon Springs State Park-Clinton,IL-yes the “Prairie State”).The tall grass prairies covered millions of acres of America’s heartland just 200 years ago.Also these prairies extended from the Gulf of Mexico north into Canada and from Illinois to the Rockies.The tallgrass prairies were the result of the glaciers retreating 8,000 years ago from the Midwest.From that time till about 3,000 years ago the climate was hotter favoring the grassland as the woodlands retreated.The grasses got very tall-3 to 6 feet tall sometimes 9′- as they liked the rich black soil.Scientists have classified the prairies into various classes and the Big Bluestem seemed to like the “mesic” sites.These were the sites that had a lot of vegetation growing.This grass just did not hold moisture but was used by the Native Americans for digestive problems.Any way the rest is history as man’s reluctant drive used up the prairie to further his advancement.Thanks to the field guide-“Tallgrass Prairie Wildflowers”

  1. Pingback: July 25 | Nature Photography | Landscape Photos

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