OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Alismatales

WEAKLEY'S FLORA (4/24/22):
Spirodela polyrhiza   FAMILY Araceae   NEW! Click to go to FSUS key


SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Spirodela polyrrhiza   FAMILY Lemnaceae

SYNONYMOUS WITH Flora of North America
Spirodela polyrrhiza

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 033-01-002:
Spirodela polyrrhiza   FAMILY Lemnaceae

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Manual of the Southeastern Flora (Small, 1933, 1938)
Spirodela polyrhiza

 

COMMON NAME:
Greater Duckweed, Duckmeat, Minnow-fole, Giant Duckweed


         To see larger pictures, click or hover over the thumbnails.

image of Spirodela polyrhiza, Greater Duckweed, Duckmeat, Minnow-fole, Giant Duckweed

Terry Holdsclaw    tdh_s_polyrrhiza_1

June    Catawba County    NC

Upper surface of fronds sometimes with red spot in center, 7-16(21) veins, per Flora of North America.

image of Spirodela polyrhiza, Greater Duckweed, Duckmeat, Minnow-fole, Giant Duckweed

Terry Holdsclaw    tdh_s_polyrrhiza_2b

June    Catawba County    NC

Fronds obovate to circular, flat or rarely gibbous, 1-1.5x as long as wide, per Flora of North America.


click here to see other plants that look similar to this COMPARE aquatic plants

image of Spirodela polyrhiza, Greater Duckweed, Duckmeat, Minnow-fole, Giant Duckweed

Terry Holdsclaw    tdh_s_polyrrhiza_8294

July    Catawba County    NC

Fronds 2-10mm, per Flora of North America.

 

WEAKLEY'S FLORA (4/24/22):
Spirodela polyrhiza   FAMILY Araceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Spirodela polyrrhiza   FAMILY Lemnaceae

SYNONYMOUS WITH Flora of North America
Spirodela polyrrhiza

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 033-01-002:
Spirodela polyrrhiza   FAMILY Lemnaceae

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Manual of the Southeastern Flora (Small, 1933, 1938)
Spirodela polyrhiza

 

Find by scientific name:

1459

Floating aquatic (2+ roots per frond, the roots floating); Forb
Perennial
Monoecious

Native to the Carolinas & Georgia

Documented growing wild in GA NC SC

Common (uncommon in Carolina Piedmont)

Habitat: Still to slowly moving waters of ponds, lakes, beaver ponds, and swamps, per Weakley's Flora

map
NEW! Click here to see a range map (and maybe identification notes) from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
-

FLOWER:
Unisexual
1 stamen in staminate flowers

FRUIT:

 

TO LEARN MORE about this plant, look it up in a good book!



 


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