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|Noun||1.||trillium family - small family of herbs having flowers with 3 petals and 3 sepals; in some classification systems considered a subfamily of the Liliaceae|
liliid monocot family - family of monocotyledonous plants of the subclass Liliidae; mostly herbs usually with petaloid sepals and petals and compound pistils
Liliales, order Liliales - an order of monocotyledonous plants including Amaryllidaceae and Liliaceae and Iridaceae
genus Trillium - deciduous perennial herbs; sometimes placed in family Liliaceae