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Plant Details

Spirodela polyrrhiza

Greater Duckweed, Minnow-fole, Duckmeat

Scientific Name:

Spirodela polyrrhiza

Genus:

Spirodela

Species Epithet:

polyrrhiza

Common Name:

Greater Duckweed, Minnow-fole, Duckmeat

Plant Type

Herb/Wildflower

Life Cycle

Perennial

Plant Family

Araceae (Arum Family)

Native/Alien:

NC Native

Invasive Status:

(*Key)

Size:

0-1 ft.

Light:

Sun - 6 or more hours of sun per day, Part Shade - 2 to 6 hours of sun per day

Soil Moisture:

Aquatic

Growing Area:

Piedmont, Coastal Plain

Habitat Description:

Still to slowly moving waters of ponds, lakes, beaver ponds, and swamps. Common to fairly common in the northern part of the NC Coastal Plain, uncommon to absent in more southern sections. Very rare in northeastern part of the NC Piedmont.

Leaf Retention:

Deciduous

Leaf Type:

Leaves veined, not needle-like or scale-like

Leaf Form:

Simple

Life Cycle:

Perennial

Wildlife Value:

Has some wildlife value

Landscape Value:

Not Recommended for home landscapes

State Rank:

S?: Uncertain (*Key)

Global Rank:

G5 - Secure (*Key)

State Status:

W7: Watch List: Poorly Known in NC (*Key)

Notes:

Rarely observed flowering. Underside of the tiny (~1/4" across) leaf [thallus] is reddish-purple.
NC Rank S2?.

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Links:

USDA PLANTS Database Record

https://auth1.dpr.ncparks.gov/flora/plant_list.php

https://nc.audubon.org/conservation/bird-friendly-communities/bird-friendly-native-plants

https://plants.ces.ncsu.edu/plants/spirodela-polyrhiza/

https://gobotany.nativeplanttrust.org/species/spirodela/polyrrhiza/



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