Lady’s Slipper

Cypripedium montanum

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Above Montana’s Lolo Creek, Lewis noticed a flower: “in shape and appearance like ours”—in Virginia, of course—”only that the corolla is white, marked with small veigns of pale red longitudinally on the inner side.”

 

Quaking Aspen

Populus tremuloides

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More than a year into the expedition, Lewis recognized a tree native to New England in the middle of Montana. The generic name, Populus is Latin for Aspen.

 

Columbian Ground Squirrel

Spermophilus columbianus

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Labiche brought a specimen into Long Camp on the Clearwater River and four days later, Meriwether Lewis penned one of his longest and most meticulous descriptions of any small mammal.