OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Spirodela polyrhiza   FAMILY Araceae   Go to FSUS key



SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) PLANTS NATIONAL DATABASE:
Spirodela polyrrhiza   FAMILY Lemnaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Spirodela polyrhiza

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Flora of North America north of Mexico, vol. 22 (2000)

Spirodela polyrrhiza

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Floristic Synthesis of North America (Kartesz, 1999)

Spirodela polyrrhiza

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 033-01-002:

Spirodela polyrrhiza   FAMILY Lemnaceae

SYNONYMOUS WITH 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 OF THE SOUTHEASTERN US (4/14/23):
Spirodela polyrhiza   FAMILY Araceae

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) PLANTS NATIONAL DATABASE:
Spirodela polyrrhiza   FAMILY Lemnaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Spirodela polyrhiza

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Flora of North America north of Mexico, vol. 22
Spirodela polyrrhiza

SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Floristic Synthesis of North America (Kartesz, 1999)
Spirodela polyrrhiza

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

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

 

Find by SCIENTIFIC NAME:

1459

Floating aquatic (the roots floating); Forb
Perennial
Monoecious

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

Native to the Carolinas & Georgia

Common (uncommon in Carolina Piedmont)

map
CLICK HERE to see a map, notes, and images 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

FRUIT:

 

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