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Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham

Daviesia pachyphylla (Ouch Bush)

Western Australia FloraFlora Index Acacia glaucoptera (Flat Wattle) Anigozanthos (Kangaroo Paws) Banksia carlinoides Conostylis argentea Daviesia pachyphylla (Ouch Bush) Exocarpos sparteus Gompholobium cyaninum Kingia australis Lechenaultia formosa (Red Leschenaultia) Mesembryanthemum crystallinum Wurmbea tenella (Eight Nancy)

Daviesia pachyphylla is a species of flowering plant in the family Fabaceae, a slender often open-spreading shrub that is endemic to the south of Western Australia, near Esperance and the Eastern Wheatbelt region.

Commonly known as “Ouch Bush”, with the crowded, sharply-pointed, narrowly conical phyllodes, along the arching branchlets. These swollen succulent leaves are about 2.5 cm long and as thick as a pencil. The winter pea-shaped flowers are yellow to orange and dark reddish in colour.

Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham

It is named after Hugh Davies, a Welsh botanist. Pachy = thick, phyllus = leaved. The specific epithet (pachyphylla) means “thick-leaved”.

Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Wheatbelt region WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Eastern Wheatbelt WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Eastern Wheatbelt WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Eastern Wheatbelt WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Eastern Wheatbelt WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Eastern Wheatbelt WA © Terry Dunham
Daviesia pachyphylla (Ouch Bush), Eastern Wheatbelt WA © Terry Dunham

  • Scientific Classification
  • Kingdom: Plantae
  • Phylum: Charophyta
  • Class: Equisetopsida
  • Subclass: Magnoliidae
  • Superorder: Rosanae
  • Order: Fabales
  • Family: Fabaceae
  • Genus: Daviesia
  • Species: Daviesia pachyphylla

Footnote & References

  1. Photographs © Terry Dunham
  2. Daviesia pachyphylla F.Muell., Ouch Bush, Atlas of Living Australia, https://bie.ala.org.au/species/Daviesia pachyphylla
  3. Daviesia pachyphylla F.Muell., Ouch Bush, Western Australian Herbarium (1998–). Florabase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions, https://florabase.dbca.wa.gov.au/browse/profile/3830

Western Australia FloraFlora Index Acacia glaucoptera (Flat Wattle) Anigozanthos (Kangaroo Paws) Banksia carlinoides Conostylis argentea Daviesia pachyphylla (Ouch Bush) Exocarpos sparteus Gompholobium cyaninum Kingia australis Lechenaultia formosa (Red Leschenaultia) Mesembryanthemum crystallinum Wurmbea tenella (Eight Nancy)

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