Macrothelypteris torresiana (swordfern).
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Abstract Macrothelypteris torresiana is a perennial fern native to Asia, Madagascar, the Mascarene Islands and Oceania. It has been widely introduced across the Americas as an ornamental plant. It grows in disturbed areas including roadsides and forest edges and behaves as a weed. It spreads via spores in wind and water but can also spread via stolons and rhizomes in garden waste. Currently, M. torresiana is listed as invasive in Cuba and Brazil and may also be invasive in Hawaii where it is spreading. The impact of this species where it is invasive is largely unknown, but it is possible that its weedy and opportunistic nature results in competition with native species and alteration of successional patterns.
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2010 ◽
Vol 26
(3)
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pp. 347-350
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