hardhack

noun
hard·​hack | \ ˈhärd-ˌhak How to pronounce hardhack (audio) \

Definition of hardhack

: a North American spirea (Spiraea tomentosa) with dense terminal panicles of pink or occasionally white flowers and leaves having a hairy and yellow to rust-colored underside

First Known Use of hardhack

1814, in the meaning defined above

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