Alien community

Posted by Graeme Lyons , Wednesday, 15 September 2010 19:19

This is Sweet Flag, a species introduced to the UK probably before 1660 and was used as a sweet-smelling floor covering. At Frensham Great Pond, there are some very larger areas of the plant but it also rearing its head at Woods Mill. It smells very strongly of tangerines and vanilla and this is quite over-powering when you're stood amongst it. Unusually, this alien species has its own NVC community, S15 Sweet Flag Acorus calamus swamp. It generally occurs as a single dominant species within the community. Apparently, it does not produce seed in Europe, it spreads vegetatively by its rhizomes. See Volume 4 of Rodwell for more details.

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