USDA ARS United States Department of Agriculture
Agricultural Research Service, Beltsville Area

Germplasm Resources Information Network (GRIN)

  GRIN Taxonomy for Plants
Jump to common names  Jump to economic impacts  Jump to distribution  Jump to references  Jump to links to other online resources  Jump to images

***Please tell us why you value GRIN Taxonomy***

Taxon: Emex australis Steinh.

Genus: Emex
Family: Polygonaceae subfamily: Polygonoideae tribe: Rumiceae.
Nomen number: 316412
Place of publication: Ann. Sci. Nat., Bot. sér. 2, 9:195, t. 7. 1838
Name verified on: 07-May-1992 by ARS Systematic Botanists. Last updated: 12-Jun-2009
No species priority site assigned.

NO ACCESSIONS IN NPGS UNDER THIS NAME.

SPECIES RESTRICTED AS A FEDERAL AND STATE NOXIOUS WEED
A declared noxious weed by USDA-APHIS.
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:
AL*, FL*, HI°, MA*, NC*.
ªAquatic. *Terrestrial. °In seed.
noxious weed information from Invaders Database System for northwestern U.S.

Common names:

  • Cape-spinach   (Source: Aust Pl Common Names ) – English
  • doublegee   (Source: Noxweed Aust ) – English
  • southern three-corner-jack   (Source: F NAmer ) – English
  • spiny emex   (Source: Noxweed Aust ) – English
  • three-corner-jack   (Source: F SAust ) – English
  • spinaciastra australiana   (Source: Galasso, pers. comm.) – Italian
  • emex-australiano   (Source: D. Groth, p.c. 2005) – Portuguese (Brazil)

Economic importance:

  • Weed: potential seed contaminant   (fide F SAust)

Distributional range:

      Native:
  • AFRICA
    Southern Africa: Lesotho; Namibia; South Africa - Cape Province, Free State, KwaZulu-Natal, Transvaal; Swaziland

      Naturalized:
  • widely naturalized elsewhere

References:

  • Allan, H. H. B. et al. 1961–. Flora of New Zealand.
  • Arnold, T. H. & B. C. De Wet, eds. 1993. Plants of southern Africa: names and distribution. Mem. Bot. Surv. S. Africa no. 62. [natzd.].
  • Bond, P. & P. Goldblatt. 1984. Plants of the Cape Flora, J. S. African Bot. suppl. vol. 13.
  • FNA Editorial Committee. 1993–. Flora of North America.
  • Galasso, G. 2011. Review of Polygonaceae data for World Economic Plants, ed. 2. pers. comm.
  • Goldblatt, P. & J. Manning. 2000. Cape plants: a conspectus of the Cape flora of South Africa. Strelitzia vol. 9.
  • Groth, D. 2005. pers. comm. [re. Brazilian common names].
  • Guillarmod, A. J. 1971. Flora of Lesotho.
  • Holm, L. et al. 1979. A geographical atlas of world weeds.
  • Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource).
  • Jessop, J. P. & H. R. Toelken, eds. 1986. Flora of South Australia, ed. 4.
  • Lazarides, M. & B. Hince. 1993. CSIRO Handbook of Economic Plants of Australia.
  • Merxmüller, H., ed. 1966–1972. Prodromus einer flora von Sudwestafrika.
  • Parsons, W. T. & E. G. Cuthbertson. 1992. Noxious weeds of Australia.
  • Ross, J. 1972. The flora of Natal.
  • Seed Regulatory and Testing Division, Agricultural Marketing Service, U.S.D.A. State noxious-weed seed requirements recognized in the administration of the Federal Seed Act (updated annually).
More:

Check other web resources for Emex australis Steinh.:

  • Flora of North America: Collaborative Floristic Effort of North American Botanists
  • SIBIS: South African National Biodiversity Institute's (SANBI) Integrated Biodiversity System
  • 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.

Images:

More:
  • Check PlantSystematics.org for additional images
  • Google Images Images 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

| USDA | ARS | GRIN | NPGS | New Search |

Cite as:
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN) [Online Database].
National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?316412 (24 October 2014)

Please send us your comments

Close Window

Ctrl P to print