Eucalyptus

имя существительное [множественное число] eucalypti; eucalyptuses; [ботаника] эвкалипт ([латинский язык] Eucalyptus gen.)

Большой англо-русский словарь

Eucalyptus

noun (plural eucalypti or -tuses) Etymology: New Latin, genus name, from eu- + Greek kalyptos covered, from kalyptein to conceal; from the conical covering of the buds — more at hell any of a genus (Eucalyptus) of mostly Australian evergreen trees or rarely shrubs of the myrtle family that have rigid entire leaves and umbellate flowers and are widely cultivated for their gums, resins, oils, and woods

Merriam-Webster's Collegiate Dictionary