Key differences

True lilies (Lilium spp.) and daylilies (Hemerocallis spp.) have large, showy flowers with six tepals and prominent stamens; leaves are narrow and arranged along stems or basal fans. Peace Lily (Spathiphyllum) bears a white or greenish spathe surrounding a spadix, with broad, glossy leaves.

Cat safety warning

True lilies/daylilies are extremely dangerous to cats—even pollen exposure can be concerning. Keep them out of homes with cats. Peace Lily is an oxalate plant and usually causes oral irritation rather than the severe reactions associated with true lilies.

What to photograph for ID

  • Whole plant and a clear bloom close-up.
  • Stamens/anthers (true lilies) vs. spathe + spadix (Peace Lily).
  • Leaf arrangement (strap-like vs. broad, petiolate).