Scleranthus, the knawels, are a genus of herbaceous plants in the family Caryophyllaceae. It includes 12 species native to Europe, Siberia, western Asia, north Africa, Ethiopia, New Guinea, and Australia.[1]
"Scleranthus". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust. Retrieved 2008-02-23.
"Scleranthus". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 2008-02-23.
"Genus: Scleranthus L."Germplasm Resources Information Network (GRIN). United States Department of Agriculture, Agricultural Research Service, Beltsville Area. Archived from the original on 2011-06-05. Retrieved 2008-02-23.