Taxon: Crassula helmsii (Kirk) Cockayne

• Check PlantSearch database of Botanic Gardens Conservation International for possible non-NPGS germplasm.

A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:

FLª, MNª, NCª, NHª, WAª.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Common names:

• New Zealand pigmyweed   (Source: BSBI ) – English
  
• swamp crassula   (Source: Aust Pl Common Names ) – English
  
• swamp-stonecrop   (Source: FL AquaNoxweed ) – English
  
• sydfyrling   (Source: Vara kulturvaxt namn ) – Swedish
  

Economic importance:

• Environmental: ornamental   (fide Invasive Pl Spec)
  
• Weed   (fide F NZeal; Invasive Pl Spec)
  

Distributional range:

• AUSTRALASIA
  Australia: Australia - New South Wales, South Australia, Tasmania, Victoria, Western Australia
  New Zealand: New Zealand

• EUROPE
  Northern Europe: Ireland; United Kingdom
  Europe [c.]
• NORTHERN AMERICA
  United States [s.e.]

• also cultivated

References:

• Aldén, B., S. Ryman & M. Hjertson. 2009. Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin).
• Allan, H. H. B. et al. 1961–. Flora of New Zealand.
• Botanical Society of the British Isles. BSBI taxon database (on-line resource).
• Center for Aquatic and Invasive Plants. Florida state list aquatic & wetland noxious weeds - from Department of Environmental Protection (on-line resource).
• Eggli, U., ed. 2003. Illustrated handbook of succulent plants: Crassulaceae. 55.
• Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11.
• Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource).
• Weber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds.

More:

Search AGRICOLA article citation database for citations referencing Crassula helmsii.

Search NCBI's Entrez search engine for PubMed citations referencing Crassula helmsii.

Search Biodiversity Heritage Library for historical publications referencing Crassula helmsii.

Check other web resources for Crassula helmsii (Kirk) Cockayne:

• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• BONAP: North American Plant Atlas of the Biota of North America Program
• AVH: Australia's Virtual Herbarium
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
• AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
• Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.

Check other web resources for images:

• PlantSystematics.org
• Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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