Plagianthus regius

Plagianthus regius or lowland ribbonwood is a tree that is endemic to New Zealand.[1] The common name is simply ribbonwood. The Māori name is manatu but is also known as houi, manaui manatu, puruhi and whauwhi.

Ribbonwood/manatu
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Plagianthus
Species:
P. regius
Binomial name
Plagianthus regius
(Poit.) Hochr. (1907)

The juvenile form has bushy interlacing branches with small leaves, while an older tree will tend to have larger leaves, sometimes with the lower parts of tree still displaying divaricating leaves.

A profusion of small white or green flowers appear in dense clusters in spring making it easier to distinguish from the similar lacebark genus.

One of the distinctive aspects of this tree is that it is usually deciduous which is unusual for New Zealand, although in the northern areas it can be semi-deciduous.[2] It is considered the largest of New Zealand's deciduous trees growing to 17 metres.[3]

It grows in the North, South and Stewart Islands.

A subspecies from the Chatham Islands, Plagianthus regius subsp. chathamicus, is very similar but lacks the divaricating aspect.[4]

See also
Adult Ribbonwood foliage

References
  1. Melville, R. 1966: "Contributions to the Flora of Australia: VII. Generic Delimitation in the Plagianthus Complex." Kew Bulletin 20: 511-516
  2. "Plagianthus regius - Ribbonwood - Manatu - The Native Plant Centre". www.nznativeplants.co.nz. Retrieved 30 October 2017.
  3. {{cite web |url=https://teara.govt.nz/en/photograph/13825/ribbonwood
  4. "Plagianthus regius subsp. regius - New Zealand Plant Conservation Network". nzpcn.org.nz. Retrieved 30 October 2017.


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