Native Plants

Plant Database

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Smith, R.W.

Acorus americanus

Acorus americanus (Raf.) Raf.

Sweetflag

Acoraceae (Calamus Family)

Synonym(s): Acorus calamus, Acorus calamus var. americanus

USDA Symbol: ACAM

USDA Native Status: L48 (N), AK (N), CAN (N)

From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Retention: Evergreen
Leaf Venation: Parallel
Fruit Type: Berry , Caryopsis
Size Notes: Up to about 6 feet tall.
Leaf: Green

Bloom Information

Bloom Color: Yellow
Bloom Time: Apr , May , Jun

Distribution

USA: AK , CT , DC , IA , ID , IL , IN , MA , ME , MI , MN , MT , ND , NE , NH , NJ , NY , OH , PA , RI , SD , VA , VT , WA , WI
Canada: AB , BC , MB , NB , NL , NS , NT , ON , PE , QC , SK
Native Habitat: Fresh Water Aquatic

Growing Conditions

Water Use: High
Light Requirement: Sun
CaCO3 Tolerance: Low

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:	OBL	OBL	OBL		OBL	OBL		OBL	OBL	OBL

This information is derived from: U.S. Army Corps of Engineers. (2023). 2022 National Wetland Plant List, version 3.6. U.S. Army Engineer Research and Development Center, Vicksburg, MS. https://wetland-plants.usace.army.mil/. Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Natural Biodiversity - Johnstown, PA
Native Seed Network - Corvallis, OR

Additional resources

USDA: Find Acorus americanus in USDA Plants
FNA: Find Acorus americanus in the Flora of North America (if available)
Google: Search Google for Acorus americanus

Metadata

Record Modified: 0000-00-00
Research By: TWC Staff

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