Meaning of yellow moccasin in English:

yellow moccasin

noun

US
  • (More fully "yellow moccasin flower") any of various North American lady's slipper orchids having a predominantly yellow flower, especially Cypripedium parviflorum and C. parviflorum var. pubescens.

Origin

Early 19th century; earliest use found in William Darlington (1782–1863).