Local residents get a look at a restored prairie behind the athletic fields at Free State High School

photo by: Nick Krug

Some native Kansas grass peeks over a walkway during a prairie tour of a restored prairie behind Free State High School, Saturday, Aug. 29, 2015. The prairie, which is a collaborative effort between Free State High School students, who grew the over 40 species of plants from seeds and Kansas University faculty and students.

photo by: Nick Krug

A line of prairie tourists make their way through a restored, native Kansas prairie behind Free State High School, Saturday, Aug. 29, 2015. The prairie, which is a collaborative effort between Free State High School students, who grew the over 40 species of plants from seeds and Kansas University faculty and students.

photo by: Nick Krug

Lawrence resident Mary Chapman, a retired Free State High School teacher, takes a closer look at some ragweed during a prairie tour of a restored, native Kansas prairie behind Free State High School, Saturday, Aug. 29, 2015. The prairie, which is a collaborative effort between Free State High School students, who grew the over 40 species of plants from seeds and Kansas University faculty and students.

photo by: Nick Krug

Lawrence resident Jason Keezer scans the surrounding plants while shooting photographs with his phone during a prairie tour of a restored, native Kansas prairie behind Free State High School, Saturday, Aug. 29, 2015. The prairie, which is a collaborative effort between Free State High School students, who grew the over 40 species of plants from seeds and Kansas University faculty and students.

photo by: Nick Krug

Prairie tourists walk through a restored, native Kansas prairie behind Free State High School, Saturday, Aug. 29, 2015. The prairie, which is a collaborative effort between Free State High School students, who grew the over 40 species of plants from seeds and Kansas University faculty and students.

photo by: Nick Krug

A non-native flower pops up surrounded by native prairie grass and plants.

photo by: Nick Krug

Tour leader Courtney Masterson, a Kansas University graduate student in the department of ecology and evolutionary biology, stops to discuss a particular plant.

photo by: Nick Krug

Doug Kieweg carries this three-year-old daughter Maisie on his shoulders as his eight-year-old, Ada, walks behind during a prairie tour of a restored, native Kansas prairie behind Free State High School, Saturday, Aug. 29, 2015. The prairie, which is a collaborative effort between Free State High School students, who grew the over 40 species of plants from seeds and Kansas University faculty and students.