Rosaceae Juss.
Spiraea x billardii Hérincq , legitimate, named hybrid
Hérincq, F. in Hérincq, F. (ed.) (1857), Horticulteur Francais : 3 [tax. nov.]
Harden, G.J. & Murray, L.J. in Harden, G.J. & Murray, L.J. (ed.) (2000), Flora of New South Wales Supplement 1: 76 [secondary reference]
Council of Heads of Australasian Herbaria (2007), Australian Plant Census: - APC [secondary reference]
  • APC Comment: A hybrid taxon probably involving Spiraea alba Duroi and S. douglasii Hook. subsp. douglasii.
  • APC Dist.: NSW (naturalised)