Myrtaceae Juss.
Eucalyptus x impensa Brooker & Hopper , legitimate, named hybrid
Brooker, M.I.H. & Hopper, S.D. (11 June 1993), New series, subseries, species and subspecies of Eucalyptus (Myrtaceae) from Western Australia and from South Australia. Nuytsia 9(1): 35-36, Figs 11 (map), 15 BHL [tax. nov.]
  • Type: "NW of Warradarge, 30°00'S, 115°15'E, 13 Aug. 1987, M.I.H.Brooker 9736 (holo: PERTH; iso: AD, CANB, MEL, NSW)."
  • Etymology: "From the Latin impensus - large, strong alluding to the leaves and fruit."
Threatened Species and Communities Section, Biodiversity Group, Environment Australia (8 July 1998), Endangered Species Protection Act 1992. Schedules 1, 2 & 3: 20 [secondary reference]
Brooker, M.I.H. (28 February 2000), A new classification of the genus Eucalyptus L'Her. (Myrtaceae). Australian Systematic Botany 13(1): 107 [secondary reference]
Brooker, M.I.H. & Kleinig, D.A. (2001), Field Guide to Eucalypts Edn. 2, 2 (South-western and southern Australia): 419 [secondary reference]
Centre for Plant Biodiversity Research (2006), EUCLID Edn. 3: - [secondary reference]
Council of Heads of Australasian Herbaria (2006), Australian Plant Census: - [secondary reference]
taxonomic synonym: Eucalyptus impensa Brooker & Kleinig nom. inval.
  • APC Dist.: WA
Council of Heads of Australasian Herbaria (2014), Australian Plant Census: - APC [secondary reference]
taxonomic synonym: Eucalyptus sp. (Eneabba) M.I.H.Brooker 9736 [n/a] taxonomic synonym: Eucalyptus impensa Brooker & Kleinig nom. inval.
  • APC Dist.: WA
French, M. & Nicolle, D. (2019), Eucalypts of Western Australia: The south-west coast and ranges: 202-203 [secondary reference]
common name: Eneabba mallee [n/a]
  • Text: "... there is mounting evidence that the type population represents a phantom hybrid between E. macrocarpa subsp. elachantha and E. pyriformis."