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American Water-plantain

Alisma subcordatum

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

33
Good

Native to Arkansas. How scores work Is it native here?

Profile 100%

Height
2–3 feet
Spread
1–2 feet
Light
Full sun, Partial shade
Soil moisture
Wet to standing water

Space about 1.5 ft apart from its recorded spread, about 44 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
April to November
Fruiting season
Summer

Not yet recorded · Leaves

Recorded in 15 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

Freshwater marshes

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

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

2CaterpillarsGenus host records with ranges including AR

Genus host records with ranges including AR · Alisma

  • Hypena madefactalisGray-Edged Bomolocha, Gray-Edged Snout
  • Papaipema nebrisStalk Borer
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
7BeesSoutheastern regional records

Southeastern regional records · Alisma

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
1BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Aythya americanaRedhead
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
Hardiness
Zones 5a–9b
Soil pH
Acidic to neutral
Flower color
Pink, purple or white
Growth rate
Moderate
Growth habit
Single crown
Foliage color
Green
Fruit begins
Summer
Fruit ends
Summer

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

Growing sources and scope
Also known as

Alisma plantago aquatica; Alisma plantago-aquatica; American Water Plantain; Southern Water Plantain

Conservation status

Arkansas rankSNR
Global rankG5
AR statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources