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Brief Summary

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Weinmannia racemosa is an abundant forest tree in New Zealand, where it is an endemic species. Example locations of occurrence are in the Catlins and on Rakiura Island, both locations on South Island.

Known by the common Maori name of Kamahi, this species can attain a height of up to 25 metres. It manifests distinctive creamy white flowers in erect spike form.
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Weinmannia racemosa

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Kamahi flowers

Weinmannia racemosa, commonly called kamahi, is an evergreen small shrub to medium-sized tree of the family Cunoniaceae.[1] It is the most abundant forest tree in New Zealand,[2] occurring in lowland, montane, and subalpine forests and shrubland from the central North Island south to Stewart Island.

Description

Kamahi bears racemes of small, pink or white flowers from July to January. Fruits are small capsules, 4–6 mm (0.16–0.24 in) long, ripening from October to May.[1] Kamahi generally occurs with other broadleaf trees, at times acting as a pioneer species which is eventually succeeded by the southern beeches (Nothofagus spp.) or podocarps. It reaches 25 m (82 ft) or more in the Catlins of the south-eastern South Island. In forests to the west of the Southern Alps it codominates with southern rātā (Metrosideros umbellata) and black beech (N. solandri).[3] A closely related tree, tōwai or tawhero (W. silvicola), replaces kamahi in the North Island north of latitude 38°S.[4]

Uses

The bark is very high in tannin, about 13%,[5] and was once exported for tanning. The inner bark was used as a laxative by Māori.[6] The wood has a tendency to warp or crack, so it is little used despite the tree's abundance.[2]

References

  1. ^ a b de Lange, P. J. "New Zealand Plant Conservation Network". Retrieved 2013-11-22.
  2. ^ a b Poole, A. L. "Kamahi - 1966 Encyclopedia of New Zealand". Retrieved 2007-06-19.
  3. ^ "Land Care Research: Kamahi-southern rata forest". Retrieved 2013-11-24.
  4. ^ "Flora of New Zealand". Retrieved 2013-11-24.
  5. ^ L.f. "Plants for a Future". Retrieved 2013-11-22.
  6. ^ "Māori Plant Use". Retrieved 2013-11-22.

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Weinmannia racemosa: Brief Summary

provided by wikipedia EN
 src= Kamahi flowers

Weinmannia racemosa, commonly called kamahi, is an evergreen small shrub to medium-sized tree of the family Cunoniaceae. It is the most abundant forest tree in New Zealand, occurring in lowland, montane, and subalpine forests and shrubland from the central North Island south to Stewart Island.

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cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
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wikipedia EN