Native Plants

Plant Database

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Sweeney, Collene

Iva annua var. annua

Iva annua L. var. annua

Marshelder, Sumpweed, Annual Marshelder, Annual Marsh Elder

Asteraceae (Aster Family)

Synonym(s): Iva ciliata

USDA Symbol: IVANA

USDA Native Status: L48 (N)

From the Image Gallery

3 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Arrangement: Opposite
Leaf Complexity: Simple
Leaf Shape: Deltoid , Elliptic , Ovate
Inflorescence: Head , Spike
Size Notes: To about 5 feet in height.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Yellow , Green
Bloom Time: Jul , Aug , Sep , Oct , Nov

Distribution

USA: AL , AR , CO , FL , GA , IA , IL , IN , KS , KY , LA , MA , ME , MI , MO , MS , NC , ND , NE , NM , OH , PA , SC , SD , TN , TX , VA , WI , WV

Additional resources

USDA: Find Iva annua var. annua in USDA Plants
FNA: Find Iva annua var. annua in the Flora of North America (if available)
Google: Search Google for Iva annua var. annua

Metadata

Record Modified: 2020-09-12
Research By: Joseph A. Marcus

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