Raukaua simplex
Raukaua simplex (artist W.H.Fitch)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Araliaceae
Genus: Raukaua
Species:
R. simplex
Binomial name
Raukaua simplex
(G.Forst.) A.D.Mitch., Frodin & Heads[1][2]
Synonyms[3]

Panax simplex G.Forst.
Pseudopanax simplex (G.Forst.) K.Koch
Nothopanax simplex (G.Forst.)
Neopanax simplex (G.Forst.) Allan
Pseudopanax simplex (G.Forst.) Philipson nom. illeg.

Raukaua simplex, or haumakāroa, is a species of evergreen plant in the Araliaceae family.[4] This species is native to New Zealand.[3] The species occurs in certain lowland, montane and subalpine forests from the Waihou River southward to Stewart Island and the Auckland Islands. An example occurrence in Westland forests includes associates such as Cyathea smithii and Dicksonia squarrosa.[5]

Description

Raukaua simplex grows as a shrub to small tree up to 8m in height.[6]

The species exhibits a significant change in appearance (heteroblasty) between its juvenile and adult form. Juvenile leaves are palmately compound, 3-5 leaflets, and deeply lobed. Adult leaves are simple, with toothed margins.[7]

Taxonomy

Raukaua simplex was first described in 1786 by Georg Forster as Panax simplex in Florulae Insularum Australium Prodromus.[8] In 1997, Mitchell, Frodin and Heads redescribed it, assigning it to the genus, Raukaua, thus naming it Raukaua simplex.[1][2]

References

  1. 1 2 "Raukaua simplex". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens.
  2. 1 2 Mitchell, A.D., Frodin, D.G. & Heads, M.J. (1997) New Zealand J. Bot. 35(3): 313
  3. 1 2
  4. ↑ Peter Wardle. 1991. Vegetation of New Zealand, Published by CUP Archive, ISBN 0-521-25873-1, ISBN 978-0-521-25873-9, 672 pages
  5. ↑ C. Michael Hogan. 2009. Crown Fern: Blechnum discolor, Globaltwitcher.com, ed. N. Stromberg
  6. ↑ "Raukaua simplex - The University of Auckland". www.nzplants.auckland.ac.nz. Retrieved 10 January 2024.
  7. ↑ Mitchell, A. D.; Frodin, D. G.; Heads, M. J. (September 1997). "Reinstatement of Raukaua , a genus of the Araliaceae centred in New Zealand". New Zealand Journal of Botany. 35 (3): 309–315. doi:10.1080/0028825X.1997.10410156. ISSN 0028-825X.
  8. ↑ Forster, J.G.A. (1786) Florulae Insularum Australium Prodromus 75.


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