Sagina procumbens L. Spreading Pearlwort
Sp.Pl. 1:128 (1753)

Conservation Code: Not threatened
Naturalised Status: Alien to Western Australia
Name Status: Current

Brief Description
Grazyna Paczkowska, Wednesday 15 May 1996

Prostrate to ascending, matted perennial, herb, to 0.05 m high. Fl. green, Mar or Jul or Sep. Damp situations.

Distribution

Beard’s Provinces: Eremaean Province, South-West Province.

IBRA Regions: Jarrah Forest, Swan Coastal Plain, Yalgoo.

IBRA Subregions: Perth, Southern Jarrah Forest, Tallering.

IMCRA Regions: WA South Coast.

Local Government Areas (LGAs): Albany, Cambridge, Canning, Claremont, Manjimup, Perth, Stirling, Yalgoo.

Management Notes (for the Swan NRM Region)
Kate Brown and Karen Bettink, Thursday 21 December 2017

Alternative Names. Bird-eye Pearlwort, Procumbent Pearlwort.

General Biology. Growth form. Herb. Life form. Perennial. Reproduction. Seed, stem and root fragments. Dispersal. Probably wind, soil, horses. Seedbank persistence. Long, 5+ years.

Notes. Naturalised in temperate regions and is invasive in some sub-Antarctic islands. Forms large, dense mats and can be difficult to eradicate due to its large persistent seed bank. The root system consists of a slender shallow taproot that divides into numerous secondary roots. Seedlings can reach maturity in several months and produce a large number of small, easily dispersed seed. Most germination occurs in light. Low growing and susceptible to competition from taller plants.

Additional information. Origin. Northern Africa, temperate Asia, Europe. History of use/introduction. Ornamental.

Suggested method of management and control. Hand remove small infestations. Try glyphosate at label rates on mature plants. Read the manufacturers' labels and material safety data sheets before using herbicides. For further information consult the Australian Pesticides and Veterinary Medicines Authority to determine the status of permits for your situation or state.

Management Calendar

Calendar Type Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Comments
Germination       Y Y Y              
Active Growth         Y Y Y Y          
Flowering           Y Y Y Y        
Fruiting             Y Y Y O      
Manual Removal Y Y Y Y Y Y Y Y Y Y Y Y  
Herbicide Treatment         Y Y Y            

Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.

 

References

  • Allwood, M. (2007) Procumbent pearlwort. Garden Organic, United Kingdom. URL: http://www.gardenorganic.org.uk/organicweeds/index.php - Accessed September 2010.
  • Brown, K. & Brooks, K. (2002) Bushland Weeds: A Practical Guide to their Management. Environmental Weeds Action Network, Greenwood.
  • Hussey, B.M.J., Keighery, G.J., Dodd, J., Lloyd, S.G. & Cousens, R.D. (2007) Western Weeds. A guide to the weeds of Western Australia. 2nd Edition. The Plant Protection Society of Western Australia, Victoria Park.
  • Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission (2008) Global Invasive Species Database: Sagina procumbens (herb). URL: http://www.issg.org/database/species/ecology.asp?si=1394&fr=1&sts=&lang=EN - Accessed September 2010.
  • USDA, ARS, National Genetic Resources Program (2009) Germplasm Resources Information Network - (GRIN). National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomysimple.aspx - Accessed October 2009.

Project information and acknowledgements