Species Detail - New Zealand Pigmyweed (Crassula helmsii) - Species information displayed is based on the dataset "National Invasive Species Database".
Terrestrial Map - 10km
Terrestrial Map - 10km
Distribution of the number of records recorded within each 10km grid square (ITM).Marine Map - 50km
Marine Map - 50km
Distribution of the number of records recorded within each 50km grid square (WGS84)._0.jpg)
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Crassula helmsii
New Zealand Pigmyweed
NBNSYS0000004639
RecommendedWell-formed
Crassula recurva non N.E. Br. (Hook.f.) Ostenf., New Zealand Pygmyweed , Tillaea helmsii Kirk, Tillaea recurva (Hook.f.) Hook.f., Tillaea recurva (Hook. f.) Hook. f.
Invasive Species: EU Invasive Alien Species Regulation No. 1143/2014 || Invasive Species: Regulation S.I. 477/2011 (Ireland) || Invasive Species: Detailed Risk Assesment || Invasive Species: High Risk Invasive Species (2013 Report) || Invasive Species: Regulation S.I. 374/2024 (Ireland) || Invasive Species: Detailed Risk Assesment >> High Risk
crhel
(Kirk) Cockayne
Flowering plant
Species
40
22
19
01/01/1984
11/09/2024
1 January (recorded in 2008)
21 October (recorded in 2009)
Collated by the National Biodiversity Data Centre from different sources, National Invasive Species Database, National Biodiversity Data Centre, Ireland, New Zealand Pigmyweed (Crassula helmsii), accessed 31 August 2025, <https://maps.biodiversityireland.ie/Dataset/397/Species/29777>