Tree fern - Revision history

Ejbannis: /* Species */

2025-05-09T08:48:07Z

Species

← Older revision		Revision as of 04:48, 9 May 2025
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	* '''''Cyathea dealbata''''' – Commonly known as the silver [[fern]] or ''ponga'', it is endemic to New Zealand and recognized by the distinctive silver-white coloration on the underside of its fronds.		* '''''Cyathea dealbata''''' – Commonly known as the silver [[fern]] or ''ponga'', it is endemic to New Zealand and recognized by the distinctive silver-white coloration on the underside of its fronds.
	* '''''Dicksonia antarctica''''' – Known as the soft tree fern or Tasmanian tree fern, it is native to southeastern Australia and is one of the most abundant tree ferns in the region.		* '''''Dicksonia antarctica''''' – Known as the soft tree fern or Tasmanian tree fern, it is native to southeastern Australia and is one of the most abundant tree ferns in the region.
	* '''''Cyathea medullaris''''' – Referred to as the black tree fern or ''mamaku'', it is native to New Zealand and some Pacific islands, known for its fast growth and large fronds~~. Unlike C. dealbata and C. smithii~~, it grows in open places with full exposure to wind and sun.		* '''''Cyathea medullaris''''' – Referred to as the black tree fern or ''mamaku'', it is native to New Zealand and some Pacific islands, known for its fast growth and large fronds, grows in open places with full exposure to wind and sun.
	* '''''Sphaeropteris excelsa''''' – This species can reach heights of up to 20 meters, with fronds extending up to 5 meters in length.		* '''''Sphaeropteris excelsa''''' – This species can reach heights of up to 20 meters, with fronds extending up to 5 meters in length.
	* '''''Cyathea smithii''''' – The southernmost naturally occurring tree fern, adapted to cooler temperate climates.<ref name="source1" />		* '''''Cyathea smithii''''' – The southernmost naturally occurring tree fern, adapted to cooler temperate climates.<ref name="source1" />

Ejbannis at 08:44, 9 May 2025

2025-05-09T08:44:57Z

← Older revision		Revision as of 04:44, 9 May 2025
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	== Ecology ==		== Ecology ==
	Tree ferns play a crucial role in forest ecosystems. Their fibrous trunks provide habitats for epiphytic plants, mosses, and ferns, supporting a diverse range of species. Tree ferns can harvest water both through the soil and aerially through the stem and fronds. The root masses of tree ferns accumulate organic material, contributing to [[Nutrient Cycling\|nutrient cycling]] and improving [[soil]] fertility. Studies have found that tree ferns provide double the amount of nitrogen in the soil that canopy trees produce and three times the amount of phosphorus. In disturbed forests, tree ferns often act as [[pioneer species]], stabilizing the soil and creating microhabitats that facilitate the regeneration of other plant species.<ref name="~~source4~~" />		Tree ferns play a crucial role in forest ecosystems. Their fibrous trunks provide habitats for epiphytic plants, mosses, and ferns, supporting a diverse range of species. Tree ferns can harvest water both through the soil and aerially through the stem and fronds. The root masses of tree ferns accumulate organic material, contributing to [[Nutrient Cycling\|nutrient cycling]] and improving [[soil]] fertility. Studies have found that tree ferns provide double the amount of nitrogen in the soil that canopy trees produce and three times the amount of phosphorus. In disturbed forests, tree ferns often act as [[pioneer species]], stabilizing the soil and creating microhabitats that facilitate the regeneration of other plant species.<ref name="source1" />

	== Species ==		== Species ==
	The exact number of tree fern species is uncertain, but notable species include:<ref name="~~source3~~" />		The exact number of tree fern species is uncertain, but notable species include:<ref name="source1" />

	* '''''Cyathea dealbata''''' – Commonly known as the silver [[fern]] or ''ponga'', it is endemic to New Zealand and recognized by the distinctive silver-white coloration on the underside of its fronds.		* '''''Cyathea dealbata''''' – Commonly known as the silver [[fern]] or ''ponga'', it is endemic to New Zealand and recognized by the distinctive silver-white coloration on the underside of its fronds.
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	* '''''Cyathea medullaris''''' – Referred to as the black tree fern or ''mamaku'', it is native to New Zealand and some Pacific islands, known for its fast growth and large fronds. Unlike C. dealbata and C. smithii, it grows in open places with full exposure to wind and sun.		* '''''Cyathea medullaris''''' – Referred to as the black tree fern or ''mamaku'', it is native to New Zealand and some Pacific islands, known for its fast growth and large fronds. Unlike C. dealbata and C. smithii, it grows in open places with full exposure to wind and sun.
	* '''''Sphaeropteris excelsa''''' – This species can reach heights of up to 20 meters, with fronds extending up to 5 meters in length.		* '''''Sphaeropteris excelsa''''' – This species can reach heights of up to 20 meters, with fronds extending up to 5 meters in length.
	* '''''Cyathea smithii''''' – The southernmost naturally occurring tree fern, adapted to cooler temperate climates.<ref name="~~source3~~" />		* '''''Cyathea smithii''''' – The southernmost naturally occurring tree fern, adapted to cooler temperate climates.<ref name="source1" />

	=== New Zealand Species ===		=== New Zealand Species ===
	Cyatheaceae – scaly tree ferns<ref name="~~source2~~" />		Cyatheaceae – scaly tree ferns<ref name="source1" />
	* ''Cyathea cunninghamii''		* ''Cyathea cunninghamii''
	* ''C. dealbata'' (Silver fern)		* ''C. dealbata'' (Silver fern)
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	== Use and Management ==		== Use and Management ==
	Indigenous communities in the southern temperate regions have historically used tree ferns for various purposes, such as food, medicine, and construction. In New Zealand and Australia, tree ferns have been harvested for commercial use, including ornamental gardening and fencing, though concerns about sustainability have led to the establishment of nurseries.<ref name="~~source2~~" /> While tree ferns can support forest ecosystems, they may also hinder tree regeneration in some areas, leading to selective management efforts, particularly in places where they have become invasive, such as Hawaii.		Indigenous communities in the southern temperate regions have historically used tree ferns for various purposes, such as food, medicine, and construction. In New Zealand and Australia, tree ferns have been harvested for commercial use, including ornamental gardening and fencing, though concerns about sustainability have led to the establishment of nurseries.<ref name="source1" /> While tree ferns can support forest ecosystems, they may also hinder tree regeneration in some areas, leading to selective management efforts, particularly in places where they have become invasive, such as Hawaii.

	== References ==		== References ==
	<references>		<references>
			<ref name="source1">Donoghue, Shavawn, and Perpetua A. M. Turner. “A Review of Australian Tree Fern [[Ecology]] in Forest Communities.” ''Austral Ecology'' 47, no. 2 (April 2022): 145–165. [https://doi.org/10.1111/aec.13103 https://doi.org/10.1111/aec.13103].</ref>
	<ref name="source2">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>		<ref name="source2">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>
	<ref name="source3">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref>		<ref name="source3">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref>
	<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>		<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>
	<ref name="conscious-explorer">Cindy. "Costa Rica – Flora Focus: Tree Ferns." ''Conscious Explorer''. [https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns]. Accessed 9 May 2025.</ref>		<ref name="conscious-explorer">Cindy. "Costa Rica – Flora Focus: Tree Ferns." ''Conscious Explorer''. [https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns]. Accessed 9 May 2025.</ref>
	<ref name="source4">Donoghue, Shavawn, and Perpetua A. M. Turner. “A Review of Australian Tree Fern [[Ecology]] in Forest Communities.” ''Austral Ecology'' 47, no. 2 (April 2022): 145–165. [https://doi.org/10.1111/aec.13103 https://doi.org/10.1111/aec.13103].</ref>
	</references>		</references>

Ejbannis at 08:35, 9 May 2025

2025-05-09T08:35:11Z

← Older revision		Revision as of 04:35, 9 May 2025
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	The two main genera of hardy tree ferns are ''Cyathea'' and ''Dicksonia''. Species of ''Dicksonia'' are readily identified by hairs growing on the newly emerging fronds, and the most common ''Cyathea'' species can be identified by the presence of scales on many (but not all) species.<ref name=""~~>Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http:~~/~~/www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref~~> They are among the most ancient botanical species on earth. They originated during the Carboniferous Period, roughly 360 million years ago. Members of both Cyatheaceae and Dicksoniaceae appear to have been diverse and relatively common during the succeeding Jurassic Period (199.6 to 145.5 million years ago) and Cretaceous Period (145.5 to 65.5 million years ago). However, the modern genera only became evident during the early Cenozoic (65.5 to 2.6 million years ago).<ref name="source2">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</~~ref~~>		The two main genera of hardy tree ferns are ''Cyathea'' and ''Dicksonia''. Species of ''Dicksonia'' are readily identified by hairs growing on the newly emerging fronds, and the most common ''Cyathea'' species can be identified by the presence of scales on many (but not all) species.<ref name="source3" /> They are among the most ancient botanical species on earth. They originated during the Carboniferous Period, roughly 360 million years ago. Members of both Cyatheaceae and Dicksoniaceae appear to have been diverse and relatively common during the succeeding Jurassic Period (199.6 to 145.5 million years ago) and Cretaceous Period (145.5 to 65.5 million years ago). However, the modern genera only became evident during the early Cenozoic (65.5 to 2.6 million years ago).<ref name="source2" />

	[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1"~~>User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.<~~/~~ref~~>]]		[[File:Tree_fern.jpg\|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica.<ref name="image1" />]]

	== Description ==		== Description ==
	Tree ferns do not develop a woody trunk that functions like other trees. All ferns have a rhizome, from which the fronds emerge. These rhizomes can vary (from species to species) from long to short, or be creeping along the ground. A tree fern is simply a case of the rhizome being very long and strong enough to support itself.<ref name="~~sourc~~"~~>Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.<~~/~~ref~~>		Tree ferns do not develop a woody trunk that functions like other trees. All ferns have a rhizome, from which the fronds emerge. These rhizomes can vary (from species to species) from long to short, or be creeping along the ground. A tree fern is simply a case of the rhizome being very long and strong enough to support itself.<ref name="source3" />

	Leaves of all ferns, including tree ferns, are referred to as fronds. On tree ferns, the fronds are held at the top of the plant in a spreading manner. They form by uncurling from the crown in the center, which is at the top of the trunk. The crown might be considered the most important part of the plant, since that is where all the leaf growth comes from. If it is destroyed, no more croziers will emerge from it, and the rest of the plant will eventually die.<ref name="" />		Leaves of all ferns, including tree ferns, are referred to as fronds. On tree ferns, the fronds are held at the top of the plant in a spreading manner. They form by uncurling from the crown in the center, which is at the top of the trunk. The crown might be considered the most important part of the plant, since that is where all the leaf growth comes from. If it is destroyed, no more croziers will emerge from it, and the rest of the plant will eventually die.<ref name="source3" />

	==Reproduction==		== Reproduction ==
	Unlike most plants, tree ferns do not reproduce via flowers or seeds but through spores. If the leaves reach maturity, they unfold into leafy fronds and develop spores on the underside of the fronds. When the spores germinate, they transform into minuscule plants.<ref name="conscious-explorer"~~>Cindy. "Costa Rica – Flora Focus: Tree Ferns." ''Conscious Explorer''. [https:~~/~~/conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns]. Accessed 9 May 2025.</ref~~>		Unlike most plants, tree ferns do not reproduce via flowers or seeds but through spores. If the leaves reach maturity, they unfold into leafy fronds and develop spores on the underside of the fronds. When the spores germinate, they transform into minuscule plants.<ref name="conscious-explorer" />

	== Distribution and Habitat ==		== Distribution and Habitat ==
	Tree ferns are widely distributed in tropical and subtropical regions, with significant populations in Southeast Asia, Australasia, and the Americas. They thrive in humid forests, especially in mountainous regions with high rainfall. Some species can also be found in temperate rainforests, particularly in countries like Costa Rica, New Zealand, and Chile. Species found at lower elevations are often widespread colonizers of disturbed or successional habitats.<ref name="~~source1~~" />		Tree ferns are widely distributed in tropical and subtropical regions, with significant populations in Southeast Asia, Australasia, and the Americas. They thrive in humid forests, especially in mountainous regions with high rainfall. Some species can also be found in temperate rainforests, particularly in countries like Costa Rica, New Zealand, and Chile. Species found at lower elevations are often widespread colonizers of disturbed or successional habitats.<ref name="source2" />

	== Ecology ==		== Ecology ==
	Tree ferns play a crucial role in forest ecosystems. Their fibrous trunks provide habitats for epiphytic plants, mosses, and ferns, supporting a diverse range of species. Tree ferns can harvest water both through the soil and aerially through the stem and fronds. The root masses of tree ferns accumulate organic material, contributing to [[Nutrient Cycling\|nutrient cycling]] and improving [[soil]] fertility. Studies have found that tree ferns provide double the amount of nitrogen in the soil that canopy trees produce and three times the amount of phosphorus. In disturbed forests, tree ferns often act as [[pioneer species]], stabilizing the soil and creating microhabitats that facilitate the regeneration of other plant species.<ref name="source4"~~>Donoghue, Shavawn, and Perpetua A. M. Turner. “A Review of Australian Tree Fern [[Ecology]] in Forest Communities.” ''Austral Ecology'' 47, no. 2 (April 2022): 145–65. https:~~/~~/doi.org/10.1111/aec.13103.</ref~~>		Tree ferns play a crucial role in forest ecosystems. Their fibrous trunks provide habitats for epiphytic plants, mosses, and ferns, supporting a diverse range of species. Tree ferns can harvest water both through the soil and aerially through the stem and fronds. The root masses of tree ferns accumulate organic material, contributing to [[Nutrient Cycling\|nutrient cycling]] and improving [[soil]] fertility. Studies have found that tree ferns provide double the amount of nitrogen in the soil that canopy trees produce and three times the amount of phosphorus. In disturbed forests, tree ferns often act as [[pioneer species]], stabilizing the soil and creating microhabitats that facilitate the regeneration of other plant species.<ref name="source4" />

	== Species ==		== Species ==
	The exact number of tree fern species is uncertain, but notable species include: <ref name="source3" />		The exact number of tree fern species is uncertain, but notable species include:<ref name="source3" />

	* '''''Cyathea dealbata''''' – Commonly known as the silver [[fern]] or ''ponga'', it is endemic to New Zealand and recognized by the distinctive silver-white coloration on the underside of its fronds.		* '''''Cyathea dealbata''''' – Commonly known as the silver [[fern]] or ''ponga'', it is endemic to New Zealand and recognized by the distinctive silver-white coloration on the underside of its fronds.
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	* '''''Cyathea medullaris''''' – Referred to as the black tree fern or ''mamaku'', it is native to New Zealand and some Pacific islands, known for its fast growth and large fronds. Unlike C. dealbata and C. smithii, it grows in open places with full exposure to wind and sun.		* '''''Cyathea medullaris''''' – Referred to as the black tree fern or ''mamaku'', it is native to New Zealand and some Pacific islands, known for its fast growth and large fronds. Unlike C. dealbata and C. smithii, it grows in open places with full exposure to wind and sun.
	* '''''Sphaeropteris excelsa''''' – This species can reach heights of up to 20 meters, with fronds extending up to 5 meters in length.		* '''''Sphaeropteris excelsa''''' – This species can reach heights of up to 20 meters, with fronds extending up to 5 meters in length.
	* '''''Cyathea smithii''''' – The southernmost naturally occurring tree fern, adapted to cooler temperate climates.<ref name="source3"~~>Itb. "Cold-Hardy Tree Ferns Page." Angelfire, www.angelfire.com~~/~~bc/eucalyptus/treeferns/. Accessed 31 Mar. 2025.</ref~~>		* '''''Cyathea smithii''''' – The southernmost naturally occurring tree fern, adapted to cooler temperate climates.<ref name="source3" />

	=== New Zealand Species ===		=== New Zealand Species ===
	Cyatheaceae – scaly tree ferns <ref name="source2" />		Cyatheaceae – scaly tree ferns<ref name="source2" />
	* ''Cyathea cunninghamii''		* ''Cyathea cunninghamii''
	* ''C. dealbata'' (Silver fern)		* ''C. dealbata'' (Silver fern)
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	== References ==		== References ==
	~~{{reflist}}~~		<references>
			<ref name="source2">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>
			<ref name="source3">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref>
			<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>
			<ref name="conscious-explorer">Cindy. "Costa Rica – Flora Focus: Tree Ferns." ''Conscious Explorer''. [https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns]. Accessed 9 May 2025.</ref>
			<ref name="source4">Donoghue, Shavawn, and Perpetua A. M. Turner. “A Review of Australian Tree Fern [[Ecology]] in Forest Communities.” ''Austral Ecology'' 47, no. 2 (April 2022): 145–165. [https://doi.org/10.1111/aec.13103 https://doi.org/10.1111/aec.13103].</ref>
			</references>

Ejbannis at 08:31, 9 May 2025

2025-05-09T08:31:32Z

← Older revision		Revision as of 04:31, 9 May 2025
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	The two main genera of hardy tree ferns are ''Cyathea'' and ''Dicksonia''. Species of ''Dicksonia'' are readily identified by hairs growing on the newly emerging fronds, and the most common ''Cyathea'' species can be identified by the presence of scales on many (but not all) species.<ref name="">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref> They are among the most ancient botanical species on earth. They originated during the Carboniferous Period, roughly 360 million years ago. Members of both Cyatheaceae and Dicksoniaceae appear to have been diverse and relatively common during the succeeding Jurassic Period (199.6 to 145.5 million years ago) and Cretaceous Period (145.5 to 65.5 million years ago). However, the modern genera only became evident during the early Cenozoic (65.5 to 2.6 million years ago).<ref name="~~source1~~">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>		The two main genera of hardy tree ferns are ''Cyathea'' and ''Dicksonia''. Species of ''Dicksonia'' are readily identified by hairs growing on the newly emerging fronds, and the most common ''Cyathea'' species can be identified by the presence of scales on many (but not all) species.<ref name="">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref> They are among the most ancient botanical species on earth. They originated during the Carboniferous Period, roughly 360 million years ago. Members of both Cyatheaceae and Dicksoniaceae appear to have been diverse and relatively common during the succeeding Jurassic Period (199.6 to 145.5 million years ago) and Cretaceous Period (145.5 to 65.5 million years ago). However, the modern genera only became evident during the early Cenozoic (65.5 to 2.6 million years ago).<ref name="source2">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>

	[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>]]		[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>]]

	== Description ==		== Description ==
	Tree ferns do not develop a woody trunk that functions like other trees. All ferns have a rhizome, from which the fronds emerge. These rhizomes can vary (from species to species) from long to short, or be creeping along the ground. A tree fern is simply a case of the rhizome being very long and strong enough to support itself.<ref name="">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref>		Tree ferns do not develop a woody trunk that functions like other trees. All ferns have a rhizome, from which the fronds emerge. These rhizomes can vary (from species to species) from long to short, or be creeping along the ground. A tree fern is simply a case of the rhizome being very long and strong enough to support itself.<ref name="sourc">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref>

	Leaves of all ferns, including tree ferns, are referred to as fronds. On tree ferns, the fronds are held at the top of the plant in a spreading manner. They form by uncurling from the crown in the center, which is at the top of the trunk. The crown might be considered the most important part of the plant, since that is where all the leaf growth comes from. If it is destroyed, no more croziers will emerge from it, and the rest of the plant will eventually die.<ref name="" />		Leaves of all ferns, including tree ferns, are referred to as fronds. On tree ferns, the fronds are held at the top of the plant in a spreading manner. They form by uncurling from the crown in the center, which is at the top of the trunk. The crown might be considered the most important part of the plant, since that is where all the leaf growth comes from. If it is destroyed, no more croziers will emerge from it, and the rest of the plant will eventually die.<ref name="" />

Ejbannis: /* Description */

2025-05-09T08:29:58Z

Description

← Older revision		Revision as of 04:29, 9 May 2025
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	== Description ==		== Description ==
	Tree ferns do not develop a woody trunk that functions like other trees. All ferns have a rhizome, from which the fronds emerge. These rhizomes can vary (from species to species) from long to short, or be creeping along the ground. A tree fern is simply a case of the rhizome being very long and strong enough to support itself.<ref name="~~source3~~">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref>		Tree ferns do not develop a woody trunk that functions like other trees. All ferns have a rhizome, from which the fronds emerge. These rhizomes can vary (from species to species) from long to short, or be creeping along the ground. A tree fern is simply a case of the rhizome being very long and strong enough to support itself.<ref name="">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref>

	Leaves of all ferns, including tree ferns, are referred to as fronds. On tree ferns, the fronds are held at the top of the plant in a spreading manner. They form by uncurling from the crown in the center, which is at the top of the trunk. The crown might be considered the most important part of the plant, since that is where all the leaf growth comes from. If it is destroyed, no more croziers will emerge from it, and the rest of the plant will eventually die.<ref name="~~source3~~" />		Leaves of all ferns, including tree ferns, are referred to as fronds. On tree ferns, the fronds are held at the top of the plant in a spreading manner. They form by uncurling from the crown in the center, which is at the top of the trunk. The crown might be considered the most important part of the plant, since that is where all the leaf growth comes from. If it is destroyed, no more croziers will emerge from it, and the rest of the plant will eventually die.<ref name="" />

	==Reproduction==		==Reproduction==

Ejbannis: /* Description */

2025-05-09T08:27:53Z

Description

← Older revision		Revision as of 04:27, 9 May 2025
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	== Description ==		== Description ==
	Tree ferns ~~are characterized by their tree-like growth habit, featuring~~ a trunk-like ~~stem that supports a crown of large, feathery fronds~~. ~~The trunk is typically formed from~~ a ~~modified~~ rhizome ~~and is often covered with a mat of roots, providing structural support. Unlike woody trees~~, the ~~trunks of tree ferns lack true secondary growth~~. ~~Fronds~~ can vary ~~in length, with some~~ species ~~exhibiting fronds up~~ to ~~several meters~~ long~~. Tree ferns generally prefer shade~~ or ~~partial shade rather than full-sun positions~~. ~~Some species can live for over 250 years in~~ the ~~wild due~~ to ~~their slow growth and resilience~~.<ref name="~~source2~~">~~Brock, James M.R., George L.W. Perry, William G. Lee, and Bruce R. Burns~~. "Tree ~~Fern [[Ecology]] in New Zealand: A Model for Southern Temperate Rainforests~~." ''~~Forest Ecology and Management~~'' ~~375 (September 2016): 112–26~~. ~~https~~://~~doi~~.~~org~~/10.~~1016~~/j.~~foreco~~.~~2016~~.05.~~030~~.</~~ref~~>		Tree ferns do not develop a woody trunk that functions like other trees. All ferns have a rhizome, from which the fronds emerge. These rhizomes can vary (from species to species) from long to short, or be creeping along the ground. A tree fern is simply a case of the rhizome being very long and strong enough to support itself.<ref name="source3">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref>

			Leaves of all ferns, including tree ferns, are referred to as fronds. On tree ferns, the fronds are held at the top of the plant in a spreading manner. They form by uncurling from the crown in the center, which is at the top of the trunk. The crown might be considered the most important part of the plant, since that is where all the leaf growth comes from. If it is destroyed, no more croziers will emerge from it, and the rest of the plant will eventually die.<ref name="source3" />

	==Reproduction==		==Reproduction==
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	== Ecology ==		== Ecology ==
	Tree ferns play a crucial role in forest ecosystems. Their fibrous trunks provide habitats for epiphytic plants, mosses, and ferns, supporting a diverse range of species. Tree ferns can harvest water both through the soil and aerially through the stem and fronds. The root masses of tree ferns accumulate organic material, contributing to [[Nutrient Cycling\|nutrient cycling]] and improving [[soil]] fertility. Studies have found that tree ferns provide double the amount of nitrogen in the soil that canopy trees produce and three times the amount of phosphorus. In disturbed forests, tree ferns often act as [[pioneer species]], stabilizing the soil and creating microhabitats that facilitate the regeneration of other plant species.<ref name="source4">Donoghue, Shavawn, and Perpetua A. M. Turner. “A Review of Australian Tree Fern Ecology in Forest Communities.” ''Austral Ecology'' 47, no. 2 (April 2022): 145–65. https://doi.org/10.1111/aec.13103.</ref>		Tree ferns play a crucial role in forest ecosystems. Their fibrous trunks provide habitats for epiphytic plants, mosses, and ferns, supporting a diverse range of species. Tree ferns can harvest water both through the soil and aerially through the stem and fronds. The root masses of tree ferns accumulate organic material, contributing to [[Nutrient Cycling\|nutrient cycling]] and improving [[soil]] fertility. Studies have found that tree ferns provide double the amount of nitrogen in the soil that canopy trees produce and three times the amount of phosphorus. In disturbed forests, tree ferns often act as [[pioneer species]], stabilizing the soil and creating microhabitats that facilitate the regeneration of other plant species.<ref name="source4">Donoghue, Shavawn, and Perpetua A. M. Turner. “A Review of Australian Tree Fern [[Ecology]] in Forest Communities.” ''Austral Ecology'' 47, no. 2 (April 2022): 145–65. https://doi.org/10.1111/aec.13103.</ref>

	== Species ==		== Species ==

Ejbannis at 08:23, 9 May 2025

2025-05-09T08:23:57Z

← Older revision		Revision as of 04:23, 9 May 2025
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	The two main genera of hardy tree ferns are ''Cyathea'' and ''Dicksonia''. Species of ''Dicksonia'' are readily identified by hairs growing on the newly emerging fronds, and the most common ''Cyathea'' species can be identified by the presence of scales on many (but not all) species.<ref name="~~source3~~">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref> They are among the most ancient botanical species on earth. They originated during the Carboniferous Period, roughly 360 million years ago. Members of both Cyatheaceae and Dicksoniaceae appear to have been diverse and relatively common during the succeeding Jurassic Period (199.6 to 145.5 million years ago) and Cretaceous Period (145.5 to 65.5 million years ago). However, the modern genera only became evident during the early Cenozoic (65.5 to 2.6 million years ago).<ref name="source1">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>		The two main genera of hardy tree ferns are ''Cyathea'' and ''Dicksonia''. Species of ''Dicksonia'' are readily identified by hairs growing on the newly emerging fronds, and the most common ''Cyathea'' species can be identified by the presence of scales on many (but not all) species.<ref name="">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref> They are among the most ancient botanical species on earth. They originated during the Carboniferous Period, roughly 360 million years ago. Members of both Cyatheaceae and Dicksoniaceae appear to have been diverse and relatively common during the succeeding Jurassic Period (199.6 to 145.5 million years ago) and Cretaceous Period (145.5 to 65.5 million years ago). However, the modern genera only became evident during the early Cenozoic (65.5 to 2.6 million years ago).<ref name="source1">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>

	[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>]]		[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>]]

Ejbannis at 08:21, 9 May 2025

2025-05-09T08:21:43Z

← Older revision		Revision as of 04:21, 9 May 2025
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	'''~~Tree ferns~~''' ~~belong to~~ the ~~order Cyatheales~~, ~~which includes~~ most ~~tree ferns, and~~ are ~~primarily found in tropical and subtropical regions~~, ~~thriving in humid forest environments~~. ~~They~~ have been ~~shown~~ to ~~have a lengthy fossil record stretching back~~ to the ~~Triassic Period~~ (~~251~~ to ~~199~~.6 million years ago).<ref name="source1">Yatskievych, George, Mickel, John T., Wagner, Warren H., Gifford, Ernest M., Walker, Warren F. "Fern." Encyclopedia Britannica, 22 Mar. 2025, * [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>		The two main genera of hardy tree ferns are ''Cyathea'' and ''Dicksonia''. Species of ''Dicksonia'' are readily identified by hairs growing on the newly emerging fronds, and the most common ''Cyathea'' species can be identified by the presence of scales on many (but not all) species.<ref name="source3">Itb. "Cold-Hardy Tree Ferns Page." ''Angelfire''. [http://www.angelfire.com/bc/eucalyptus/treeferns/ www.angelfire.com/bc/eucalyptus/treeferns/]. Accessed 31 Mar. 2025.</ref> They are among the most ancient botanical species on earth. They originated during the Carboniferous Period, roughly 360 million years ago. Members of both Cyatheaceae and Dicksoniaceae appear to have been diverse and relatively common during the succeeding Jurassic Period (199.6 to 145.5 million years ago) and Cretaceous Period (145.5 to 65.5 million years ago). However, the modern genera only became evident during the early Cenozoic (65.5 to 2.6 million years ago).<ref name="source1">Yatskievych, George; Mickel, John T.; Wagner, Warren H.; Gifford, Ernest M.; Walker, Warren F. "Fern." ''Encyclopedia Britannica'', 22 Mar. 2025. [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>

	[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>]]		[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>]]

Ejbannis at 08:14, 9 May 2025

2025-05-09T08:14:18Z

← Older revision		Revision as of 04:14, 9 May 2025
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	== Description ==		== Description ==
	Tree ferns are characterized by their tree-like growth habit, featuring a trunk-like stem that supports a crown of large, feathery fronds. The trunk is typically formed from a modified rhizome and is often covered with a mat of roots, providing structural support. Unlike woody trees, the trunks of tree ferns lack true secondary growth. Fronds can vary in length, with some species exhibiting fronds up to several meters long. Tree ferns generally prefer shade or partial shade rather than full-sun positions. Some species can live for over 250 years in the wild due to their slow growth and resilience.<ref name="source2">Brock, James M.R., George L.W. Perry, William G. Lee, and Bruce R. Burns. "Tree Fern [[Ecology]] in New Zealand: A Model for Southern Temperate Rainforests." ''Forest Ecology and Management'' 375 (September 2016): 112–26. https://doi.org/10.1016/j.foreco.2016.05.030.</ref>		Tree ferns are characterized by their tree-like growth habit, featuring a trunk-like stem that supports a crown of large, feathery fronds. The trunk is typically formed from a modified rhizome and is often covered with a mat of roots, providing structural support. Unlike woody trees, the trunks of tree ferns lack true secondary growth. Fronds can vary in length, with some species exhibiting fronds up to several meters long. Tree ferns generally prefer shade or partial shade rather than full-sun positions. Some species can live for over 250 years in the wild due to their slow growth and resilience.<ref name="source2">Brock, James M.R., George L.W. Perry, William G. Lee, and Bruce R. Burns. "Tree Fern [[Ecology]] in New Zealand: A Model for Southern Temperate Rainforests." ''Forest Ecology and Management'' 375 (September 2016): 112–26. https://doi.org/10.1016/j.foreco.2016.05.030.</ref>

			==Reproduction==
			Unlike most plants, tree ferns do not reproduce via flowers or seeds but through spores. If the leaves reach maturity, they unfold into leafy fronds and develop spores on the underside of the fronds. When the spores germinate, they transform into minuscule plants.<ref name="conscious-explorer">Cindy. "Costa Rica – Flora Focus: Tree Ferns." ''Conscious Explorer''. [https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns https://conscious-explorer.com/magazine/costa-rica-flora-focus-tree-ferns]. Accessed 9 May 2025.</ref>

	== Distribution and Habitat ==		== Distribution and Habitat ==

Ejbannis at 07:24, 9 May 2025

2025-05-09T07:24:25Z

← Older revision		Revision as of 03:24, 9 May 2025
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	'''Tree ferns''' belong to the order Cyatheales, which includes most tree ferns, and are primarily found in tropical and subtropical regions, thriving in humid forest environments. They have been shown to have a lengthy fossil record stretching back to the Triassic Period (251 to 199.6 million years ago).<ref name="source1">Yatskievych, George, Mickel, John T., Wagner, Warren H., Gifford, Ernest M., Walker, Warren F. "Fern." Encyclopedia Britannica, 22 Mar. 2025, [https://www.britannica.com/plant/fern].</ref>		'''Tree ferns''' belong to the order Cyatheales, which includes most tree ferns, and are primarily found in tropical and subtropical regions, thriving in humid forest environments. They have been shown to have a lengthy fossil record stretching back to the Triassic Period (251 to 199.6 million years ago).<ref name="source1">Yatskievych, George, Mickel, John T., Wagner, Warren H., Gifford, Ernest M., Walker, Warren F. "Fern." Encyclopedia Britannica, 22 Mar. 2025, * [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica].</ref>

	[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>]]		[[File:Tree_fern.jpg \|600px\|thumb\|A Tree fern in its natural habitat in the cloud rainforests of Costa Rica<ref name="image1">User. "Tree fern in Costa Rica." Photograph taken in the cloud rainforest of Costa Rica by Ethan Bannister, January 2025.</ref>]]
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	== Use and Management ==		== Use and Management ==
	Indigenous communities in the southern temperate regions have historically used tree ferns for various purposes, such as food, medicine, and construction. In New Zealand and Australia, tree ferns have been harvested for commercial use, including ornamental gardening and fencing, though concerns about sustainability have led to the establishment of nurseries.<ref name="source2" /> While tree ferns can support forest ecosystems, they may also hinder tree regeneration in some areas, leading to selective management efforts, particularly in places where they have become invasive, such as Hawaii.		Indigenous communities in the southern temperate regions have historically used tree ferns for various purposes, such as food, medicine, and construction. In New Zealand and Australia, tree ferns have been harvested for commercial use, including ornamental gardening and fencing, though concerns about sustainability have led to the establishment of nurseries.<ref name="source2" /> While tree ferns can support forest ecosystems, they may also hinder tree regeneration in some areas, leading to selective management efforts, particularly in places where they have become invasive, such as Hawaii.

	~~== External Links ==~~
	* [https://www.britannica.com/plant/tree-fern Tree Fern – Britannica]

	== References ==		== References ==
	{{reflist}}		{{reflist}}