© Graham Day
© Graham Day
Map updated: March 2008
:: Flora of Northern Ireland ::
| Previous Species | Stonecrops Species List | Next Species |
| Crassula helmsii | Crassulaceae | New Zealand Pigmyweed |
| Click on the thumbnails to enlarge the images | |||
© Graham Day |
© Graham Day |
Map updated: March 2008 |
|
| Species Description: |
| A recent arrival in Northern Ireland - first noticed in a pool at Gosford in 1984 and at the flooded Glastry clay-pits in Co. Down in about 1985. Now a nuisance at the latter place. A native of New Zealand which has spread acosss Great Britain in recent years and has a deleterious effect on other aquatic flora. This plant is introduced for garden ponds and escapes into watercourses, or is thrown out by gardeners (compare Azolla). |
| All names: Crassula helmsii (Kirk) Cockayne; Crassula recurva (Hook.f.) Ostenf. non N.E.Br.; Tillaea recurva (Hook.f.) Hook.f. |
| © National Museums Northern Ireland, 2000-2009 |