SIOUX CITY -- The Sioux City Lewis & Clark Interpretive Center will present “Earth Day with Captain Lewis” for kids at 1 p.m. Saturday in the Sgt. Floyd Classroom. Admission and materials are free.
The 45-minute activity will introduce kids to some of the 178 plant species new to Western science collected and recorded by Capt. Meriwether Lewis during the 1804-1806 Lewis & Clark Expedition.
Participants will make take-home seed jars that will provide opportunities to watch seeds germinate and record descriptions of daily plant growth.
Lewis collected four plant specimens in 1804 between present-day Onawa, Iowa, and Nebraska’s Niobrara River that later were described as new to science: Field Horsetail (August 10); Meadow Anemone (August 17); Curlycup Gumweed (August 17); Rocky Mountain Bee Plant (August 25); and Wild Four O’clock (September 1). Field Horsetail, now called Common Horsetail, was the first specimen recorded in the Lewis & Clark Herbarium.