States
North CarolinaTennesseeGeorgiaSouth CarolinaKentuckyAlabamaArkansasFloridaLouisianaMississippiVirginiaWest Virginia
Menu

Longbeak Arrowhead

Sagittaria australis

In the Carolinas and Georgia, found in marshes, swamps, rivershores, backwaters, margins of ponds and lakes. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

56
Strong

Native to Louisiana (estimated). How scores work Is it native here?

Profile 94%

Height
Up to about 4 feet
Light
Partial shade, Full sun
Soil moisture
Moist to standing water
Will it fit your yard?

At a glance

Life cycle
Annual
Bloom
June to October

Not yet recorded · Spread · Leaves

Recorded in 2 Louisiana parishes.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 3

Freshwater marshes

Open, herb-covered wetlands with fresh, non-tidal water.

Swamps

Forested wetlands with standing water much of the year, such as cypress and gum swamps.

Ponds, lakes and their shores

Still water and its edges: ponds, lakes, millponds and reservoirs.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

7CaterpillarsGenus host records with ranges including LA

Genus host records with ranges including LA · Sagittaria

  • Acronicta oblinitaSmeared Dagger
  • Argyrogramma verrucaGolden Looper
  • Bellura obliquaCattail Border Moth, Cattail Diver
  • Elophila obliteralisWaterlily Leafcutter Moth
  • Parapoynx obscuralisObscure Pondweed Moth
  • Spodoptera latifasciaOrange-Striped Armyworm, Velvet Armyworm Moth
  • Bellura anoa
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
11BeesSoutheastern regional records

Southeastern regional records · Sagittaria

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
11BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Sagittaria

  • Aix sponsaWood Duck
  • Anas platyrhynchosMallard
  • Anser caerulescensSnow Goose
  • Antigone canadensisSandhill Crane
  • Aythya affinisLesser Scaup
  • Aythya collarisRing-necked Duck
  • Aythya valisineriaCanvasback
  • Bucephala clangulaCommon Goldeneye
  • Fulica americanaAmerican Coot
  • Gallinula galeataCommon Gallinule
Show all 11
  • Mareca americanaAmerican Wigeon
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Alismataceae
Flower color
White

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope

Conservation status

Louisiana rankSNR
Global rankG5
LA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

Choose a county to begin.

How to check your spot

Sources