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Yellow lady-slipper (Cypripedium calceolus)

Thirty-five species of native orchids inhabit the forests, fens, glades and prairies of Missouri. Yellow lady-slipper orchids, the most common of Missouri's lady-slippers, grow on acid soils of east- and north-facing slopes in ungrazed forest through most of the state. The greatest threats to their survival include habitat destruction and alteration and digging by plant collectors.