trifoliata : Idioms & Phrases
menyanthes trifoliata
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noun perennial plant of Europe and America having racemes of white or purplish flowers and intensely bitter trifoliate leaves; often rooting at water margin and spreading across the surface
marsh trefoil; buckbean; bogbean; water shamrock; bog myrtle.
WordNet
poncirus trifoliata
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noun small fast-growing spiny deciduous Chinese orange tree bearing sweetly scented flowers and decorative but inedible fruit: used as a stock in grafting and for hedges
trifoliata; wild orange; trifoliate orange.