Hardhack
Scientific name: Spiraea tomentosa L.
Diagnostic features Differs from Spiraea douglasii douglasii in leaves ovate, grey- to buff-tomentose on lowerside, serrate for distal 2/3 or more of margin. Follicles pubescent.
Chromosome number: (2n=36).
Habitat Introduced-naturalized.
Distribution Grown in gardens, rather rarely naturalized in England; East North America.
This species iskeyed out on Page 2340 in the Text Key. |