Thick-leaved tree daisy Olearia pachyphylla

Key Features

  • A large, spreading shrub to 3 m tall with flaking, greyish brown bark and stout branches.
  • Leaves are large (5-14 x 3-9 cm), leathery and broadly oval but strongly curved. They have a pale green upper surface and a soft white felt on the underside.
  • Numerous small, white flower heads occur in open clusters toward the branch tips. Each flower head has a tubular base covered in small scales coated in long, silky hairs.
  • Two related shrubs (Olearia townsonii and O. furfuracea) grow taller (to 5 m) than O. pachyphylla, but are best distinguished by the lack of hairs on the scales beneath flower heads.

Distribution and Habitat

  • Eastern Bay of Plenty at Opape. Previously known from Coromandel Peninsula and from Torere (eastern Bay of Plenty). Occurs on steep cliffs and stream banks amongst scrub.


  • Coastal development.
  • Competition with exotic plants.
  • Browsing by goats.

Management Opportunities

  • Survey for new locations.
  • Mark known sites.
  • Protection of habitat.
  • Weed control.
  • Avoid afforestation of known sites.
  • Propagation of plants for re-establishment at appropriate sites.

Monitoring Options

  • Check existing populations annually.
  • Report new locations to DOC, NZPCN.

Further Information and Support

  • New Zealand Plant Conservation Network (NZPCN).
  • References
    • Dopson, S.R.; de Lange, P.J.; Ogle, C.C.; Rance, B.D.; Courtney, S. & Molloy, J. (1999). The conservation requirements of New Zealand’s nationally threatened vascular plants. Threatened Species Occasional Publication 13. Department of Conservation, Wellington.
    • Peter de Lange, Peter Heenan, David Norton, Jeremy Rolfe and John Sawyer (2010). Threatened Plants of New Zealand. Canterbury University Press, Christchurch. 472 pp.