''Sagittaria australis,'' the Appalachian arrowhead or longbeak arrowhead, is a plant species native to much of the eastern part of the United States, from

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a U.S. state, state in the Deep South and South Central United States, South Central regions of the United States. It is the List of U.S. states and territories by area, 20th-smal ...

Iowa Iowa () is a U.S. state, state in the Midwestern United States, Midwestern region of the United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states: Wiscon ...

New York State New York, officially the State of New York, is a U.S. state, state in the Northeastern United States. It is often called New York State to distinguish it from its largest city, New York City. With a total area of , New York is the List of U.S. ...

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, a ...

, mostly between

New Jersey New Jersey is a U.S. state, state in the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. It is bordered on the north and east by the state of New York (state), New York; on the ea ...

and

Mississippi Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Mis ...

with scattered locations elsewhere in the range. It is an

emergent Emergent may refer to: * ''Emergent'' (album), a 2003 album by Gordian Knot * Emergent (software), Neural Simulation Software * Emergent BioSolutions, a multinational biopharmaceutical company headquartered in Gaithersburg, Maryland, USA * Emerg ...

aquatic, growing in swamps and along the edges of lakes and ponds. It is sometimes sold as an ornamental to be cultivated in aquaria or garden ponds. ''Sagittaria australis'' is a

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

herb up to 130 cm (50 inches) tall. It is unusual in genus in having a 5-winged petiole. Flowers are up to 3 cm (1.2 inches) in diameter, white, producing an

achene An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not op ...

with a recurved beak.

References

External links

US Department of Agriculture, Plants profile, Sagittaria australis (J.G. Sm.) Small, Longbeak arrowhead Photo of herbarium specimen at Missouri Botanical Garden, collected in Kentucky, ''Sagittaria australis''Photo of herbarium specimen at Missouri Botanical Garden, collected in Alabama in 1896, holotype of ''Sagittaria longirostra'' var. ''australis'' and ''Sagittaria australis''Missouri Botanical Garden, Gardening Tips, ''Sagittaria australis'' 'Benni' SILK STOCKINGSAlabama Plant Atlas, ''Sagittaria australis''Delaware WildflowersDigital Atlas of the Virginia Flora
{{Taxonbar, from=Q15582485 australis Flora of the United States Freshwater plants Garden plants Plants described in 1897