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The fern is native to the three principal islands of New Zealand and the Chatham Islands, as well as to New Zealand’s subantarctic Snares, Antipodes, Auckland and Campbell Islands, and to Australia’s Macquarie Island. On Macquarie, it dominates the fernbrake communities which typically occur on the eastern, leeward side of the island on valley slopes and sheltered valley floors. Although it can form dense stands in which few other plants will grow, more commonly it is found in conjunction with Stilbocarpa polaris, Poa foliosa and Pleurophyllum hookeri. The fern is seriously affected by rabbit grazing. | The fern is native to the three principal islands of New Zealand and the Chatham Islands, as well as to New Zealand’s subantarctic Snares, Antipodes, Auckland and Campbell Islands, and to Australia’s Macquarie Island. On Macquarie, it dominates the fernbrake communities which typically occur on the eastern, leeward side of the island on valley slopes and sheltered valley floors. Although it can form dense stands in which few other plants will grow, more commonly it is found in conjunction with Stilbocarpa polaris, Poa foliosa and Pleurophyllum hookeri. The fern is seriously affected by rabbit grazing. | ||
Photographed at Otari Wilton Bush Reserve, Wellington.[ | Photographed at Otari Wilton Bush Reserve, Wellington.[[File:Polystichum vestitum prickly sheild fern-001.JPG|frameless|upright 2.25]] | ||
[ | [[File:Polystichum vestitum prickly sheild fern. 165 .JPG|frameless|upright 2.25]] | ||
The hardy fern was photographed on Denniston's mountain plateau West Coast, South Island.<br /> | The hardy fern was photographed on Denniston's mountain plateau West Coast, South Island.<br /> | ||
[ | [[File:Polystichum vestitum-001.JPG|frameless|upright 2.25]] | ||
The underside of a sterile fern (no sori)<br /> | The underside of a sterile fern (no sori)<br /> | ||
[ | [[File:Polystichum vestitum-004.JPG|frameless|upright 2.25]] | ||
The top surface of a sterile frond.<br /> | The top surface of a sterile frond.<br /> | ||
[ | [[File:Sterile frond Polystichum vestitum.JPG|frameless|upright 2.25]] | ||
The topside of fertile frond<br /> | The topside of fertile frond<br /> | ||
[ | [[File:Polystichum vestitum Puniu Prickly sheild Fern-002.JPG|frameless|upright 2.25]] | ||
The underside of a fertile frond<br /> | The underside of a fertile frond<br /> | ||
[ | [[File:Polystichum vestitum prickly sheild fern-003.JPG|frameless|upright 2.25]] | ||
Underside with ripe sori<br /> | Underside with ripe sori<br /> | ||
[[File:Polystichum vestitum Prickly Sheild fern-1.JPG|frameless|upright 2.25]] | |||
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/ | Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/ | ||
Latest revision as of 16:11, 24 September 2019
Kingdom :Plantae
Division: Pteridophyta
Class: Pteridopsida
Order: Polypodiales
Family: Dryopteridaceae
Genus: Polystichum
Species: P. vestitum
Binomial name: Polystichum vestitum
Synonyms: Polypodium vestitum, Aspidium vestitum, Polystichum venustum, Aspidium venustum.
Common name: Prickly Sheild fern, Puniu
Polystichum vestitum is a very cold hardy fern. It has long, dark green fronds which are almost prickly to touch. It will slowly increase in size to form a clump. It is a terrestrial fern with an erect and scaly rhizome, sometimes forming a short trunk and growing up to 700 mm in height. The fronds are 220–600 mm long. There are 3–7 (usually 5) round sori on each pinnule, halfway between the margin and midrib, with a light brown indusium.
The fern is native to the three principal islands of New Zealand and the Chatham Islands, as well as to New Zealand’s subantarctic Snares, Antipodes, Auckland and Campbell Islands, and to Australia’s Macquarie Island. On Macquarie, it dominates the fernbrake communities which typically occur on the eastern, leeward side of the island on valley slopes and sheltered valley floors. Although it can form dense stands in which few other plants will grow, more commonly it is found in conjunction with Stilbocarpa polaris, Poa foliosa and Pleurophyllum hookeri. The fern is seriously affected by rabbit grazing.
Photographed at Otari Wilton Bush Reserve, Wellington.
The hardy fern was photographed on Denniston's mountain plateau West Coast, South Island.
The underside of a sterile fern (no sori)
The top surface of a sterile frond.
The topside of fertile frond
The underside of a fertile frond
Underside with ripe sori
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/
