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Another name for several bushy flowering plants, including the rose of Sharon. The name alludes to the Biblical Aaron and his very long beard. A: "I see these plants everywhere but I can never remember what they're called." B: "Oh, that bush? That's Aaron's beard." I grew up calling this plant an Aaron's beard, but my husband's family calls it a rose of Sharon. That's a lovely Aaron's beard! We have one in our yard too.
See also: beard
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