OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Potamogeton diversifolius   FAMILY Potamogetonaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Potamogeton diversifolius   FAMILY Potamogetonaceae

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

Potamogeton diversifolius

SYNONYMOUS WITH Flora of North America

Potamogeton diversifolius

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 022-01-002:

Potamogeton diversifolius   FAMILY Potamogetonaceae

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

Potamogeton diversifolius

 

COMMON NAME:
Common Snailseed Pondweed, Waterthread Pondweed


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

image of Potamogeton diversifolius, Common Snailseed Pondweed, Waterthread Pondweed

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_podi_001_lvd

        

image of Potamogeton diversifolius, Common Snailseed Pondweed, Waterthread Pondweed

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_podi_003_lvd

        

image of Potamogeton diversifolius, Common Snailseed Pondweed, Waterthread Pondweed

Keith Bradley    kab_p_diversifolius_74909

June    Osceola County    FL

Floating leaves usually present; submersed leaves flat, linear, non-septate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).


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

image of Potamogeton diversifolius, Common Snailseed Pondweed, Waterthread Pondweed

Keith Bradley    kab_p_diversifolius_74915

June    Osceola County    FL

Subsurface leaves are thin, ribbon-like and alternate; stem often forks, per Field Guide to Aquatic Plants of Alabama (Lovell, 2007).

image of Potamogeton diversifolius, Common Snailseed Pondweed, Waterthread Pondweed

JK Marlow    jkm210709_2010

July    Greenville County    SC

Blackwell Heritage Preserve

Fruiting spikes cylindric, 3-20mm long, 3-6mm broad; peduncles to 7cm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Potamogeton diversifolius, Common Snailseed Pondweed, Waterthread Pondweed

JK Marlow    jkm210709_2012

July    Greenville County    SC

Blackwell Heritage Preserve

Surface leaves are oval, about 1 to 2 inches long and opposite, per Field Guide to Aquatic Plants of Alabama (Lovell, 2007).

image of Potamogeton diversifolius, Common Snailseed Pondweed, Waterthread Pondweed

JK Marlow    jkm210806_2427

July    Greenville County    SC

Blackwell Heritage Preserve

image of Potamogeton diversifolius, Common Snailseed Pondweed, Waterthread Pondweed

JK Marlow    jkm210806_2429

July    Greenville County    SC

Blackwell Heritage Preserve

Infl's unbranched; spikes dimorphic: submersed capitate & 2-3mm, emersed cylindric & 5-9.7mm, per Flora of North America.

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Potamogeton diversifolius   FAMILY Potamogetonaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Potamogeton diversifolius   FAMILY Potamogetonaceae

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

SYNONYMOUS WITH Flora of North America
Potamogeton diversifolius

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 022-01-002:
Potamogeton diversifolius   FAMILY Potamogetonaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Potamogeton diversifolius

 

Find by SCIENTIFIC NAME:

4106

Submersed aquatic (rooted); Forb
Perennial

Habitat: Pools, ponds, lakes, streams, rivers, per Weakley's Flora

Native to the Carolinas & Georgia

Common

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:
Simple
Mostly alternate
Margins entire

FLOWER:
Summer/Fall
Calyx absent
Petals absent
4 stamens
Superior ovary
Bisexual

FRUIT:
Summer/Fall
Achene

 

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



 


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