Sagittaria subulata

Sagittaria subulata
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Alismatales
Family:	Alismataceae
Genus:	Sagittaria
Species:	S. subulata
Binomial name
Sagittaria subulata (L.) Buchenau
Synonyms[1]
Alisma subulatum L. Sagittaria lorata (Chapm.) Small Sagittaria natans var. lorata Chapm. Sagittaria natans var. pusilla (Nutt.) Chapm. Sagittaria pusilla Nutt. Sagittaria subulata subsp. lorata (Chapm.) R.T.Clausen Sagittaria subulata var. lorata (Chapm.) Fernald Sagittaria subulata var. pusilla (Nutt.) Buchenau

Sagittaria subulata, the awl-leaf arrowhead,[2] narrow-leaved arrowhead[3] or dwarf sagittaria, is an aquatic plant species.

Description

It is a perennial herb up to 40 centimetres (16 inches) tall. The leaves are submersed or floating, narrowly linear to ovate, not lobed. The inflorescence floats on the surface of the water.[4]

Distribution and habitat

It is native to the Colombia, Venezuela, and every US state along the coast from Massachusetts to Louisiana.[4][5] It has also been reported as naturalized in Great Britain on just three occasions; only one of these is recent and 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.[6] It grows primarily in shallow brackish water along the seacoast, in marshes, estuaries, etc.

Conservation

It is listed as special concern in Connecticut,[7] as endangered in Massachusetts, as rare in Pennsylvania, and as historical in Rhode Island.[8]

References

1. The Plant List, Sagittaria subulata
2. NRCS. "Sagittaria subulata". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 26 October 2015.
3. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
4. "Sagittaria subulata in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2017-01-30.
5. Biota of North America Program map, Sagittaria subulata
6. Kew World Checklist of Selected Plant Families, Sagittaria subulata
7. "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.)
8. NRCS. "Sagittaria subulata". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 17 January 2018.

External links

• photo of herbarium specimen at Missouri Botanical Garden, collected in Delaware