yellow lady's slipper, yellow lady-slipper, Cypripedium calceolus, Cypripedium parviflorum
['tennis ball', 'water snake', 'pick, plectrum, plectron', 'chambered nautilus, pearly nautilus, nautilus', 'long-horned beetle, longicorn, longicorn beetle', 'cricket', 'horned viper, cerastes, sand viper, horned asp, Cerastes cornutus']