Candidate 1
Lily
Lilium species
True lilies (Easter, Asiatic, Oriental, Tiger lily) are in the Lilium genus and are extremely toxic to cats.
Potentially toxicUncertain
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Ambiguity chooser
'Lily' in pet-safety contexts can mean wildly different plants. True Lilium species are a feline emergency; peace lily and daylily are separate genera with very different safety profiles.
Candidate 1
Lilium species
True lilies (Easter, Asiatic, Oriental, Tiger lily) are in the Lilium genus and are extremely toxic to cats.
Candidate 2
Hemerocallis spp.
Daylily is not a true Lilium but is also acutely toxic to cats via a similar kidney-failure pattern.
Candidate 3
Spathiphyllum
Peace lily is an aroid, not a true lily; irritating but not the same feline emergency.