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Giant Arrowhead

Sagittaria montevidensis

In the Carolinas and Georgia, found in disturbed areas, marshes. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

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Not native

Not native to Arkansas. How scores work Is it native here?

Profile 59%

Light
Partial shade, Full sun
Soil moisture
Dry to wet

At a glance

Bloom
July

Not yet recorded · Height · Spread · Life cycle · Leaves

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 4 Arkansas counties.

Natural habitats

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

1 of 2

Roadsides, fields and disturbed ground

Ground opened by people: roadsides, old fields, pastures, fencerows and lots.

Freshwater marshes

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

All habitats

Ecological relationships

Who uses this plant?

What these records mean

7CaterpillarsGenus host records with ranges including AR

Genus host records with ranges including AR · Sagittaria

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

Growing and identification

Plant details

Family
Alismataceae

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

Growing sources and scope
Also known as

Sagittaria spatulata

Conservation status

Arkansas rankSNR
Global rankG4G5
AR statusNot verified
Federal statusNot verified

Conservation source Global and federal source

Native alternatives

Find natives for your garden

Sources