Of the Liliaceae family, which contains the lily, tulip and hyacinth(adjective)
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Use "liliaceous" in a sentence
"n. - kind of liliaceous plant; daffodil; Literature, flower of the Elysian fields. bog asphodel, British grass-like moorland plant. asportation"
"Herbert found some new ones, among others some which Pencroft called “sham leeks”; for, in spite of their size, they were of the same liliaceous family as the onion, chive, shallot, or asparagus."
"The air was delightfully cool and fragrant; and the drops of dew still glittered on the leaves of the large liliaceous plants, which shaded the streamlets of clear water."