Sagittaria subulata, the awl-leaf arrowhead, narrow-leaved arrowhead or dwarf sagittaria, is an aquatic plant species that grows primarily in shallow brackish water along the seacoast, in marshes, estuaries, etc. It is native to the Republic of Colombia, the District of Columbia, Venezuela, and every US state along the coast from Massachusetts to Louisiana. It has also been reported as naturalized in Great Britain on just three occasions; only one of these is recent and here it appears to have become extinct by 2010. It is also recorded as a non-native on the Azores, and on the Island of Java in Indonesia.
Conservation status in the United States
- The Plant List, Sagittaria subulata
- "Sagittaria subulata". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 26 October 2015.
- "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
- "Sagittaria subulata in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2017-01-30.
- Biota of North America Program map, Sagittaria subulata
- Kew World Checklist of Selected Plant Families, Sagittaria subulata
- Buchenau, Franz Georg Philipp. 1871. Abhandlungen herausgegeben vom Naturwissenschaftlichen Vereins zu Bremen 2: 490, Sagittaria subulata
- von,, Linné, Carl; Lars,, Salvius, (1753-01-01). "Caroli Linnaei ... Species plantarum". 1.
- "Connecticut's Endangered, Threatened and Special Concern Species 2015". State of Connecticut Department of Energy and Environmental Protection Bureau of Natural Resources. Retrieved 12 January 2018. (Note: This list is newer than the one used by plants.usda.gov and is more up-to-date.)
- "Plants Profile for Sagittaria subulata (arumleaf arrowhead)". plants.usda.gov. Retrieved 17 January 2018.