ledum : Idioms & Phrases
genus ledum
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noun evergreen shrubs of north temperate regions
Ledum.
WordNet
ledum groenlandicum
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noun evergreen shrub of eastern North America having white or creamy bell-shaped flowers and dark green hairy leaves used for tea during American Revolution
crystal tea; Labrador tea.
WordNet
ledum palustre
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noun bog shrub of northern and central Europe and eastern Siberia to Korea and Japan
wild rosemary; marsh tea.