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Marcus, Joseph A.
Potamogeton nodosus Poir.
Knotty Pondweed, Longleaf pondweed
USDA Symbol: pono2
USDA Native Status: Native to U.S.
Plant Characteristics
Duration: Perennial Habit: Herb Breeding System: Flowers
Bisexual Size Notes: 1-3
Leaf: Green
Fruit: Size Class: 1-3 ft.
Bloom Information
Bloom Color: White , Green
Bloom Time: May , Jun , Jul , Aug
Distribution
USA: AL , AR , AZ , CA , CO , CT , DC , DE , FL , GA , HI , IA , ID , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , NC , ND , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY
Canada: NB ,
NS Native Habitat: Partial to marginal to deepwater aquatic areas. Zones 7 - 11, with an indefinite range.
USDA Native Status: L48(N), HI(N), PR(N), CAN(N) Growing Conditions
Water Use: High
Light Requirement: Sun , Part Shade
Soil Moisture: Wet
CaCO3 Tolerance: Low
Aquatic: yes
Conditions Comments: Use as oxygenator in water gardens. The variety P. crispus tolerates polluted water better than other oxygenators. Decorative, trailing habit in ponds. Grow in aquatic containers of sandy loam, root in muddy pool bottoms at depth of 6 - 24.
Benefit
Interesting Foliage: yes
Deer Resistant: High
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Lady Bird Johnson Wildflower Center - Austin, TX
Recommended Species Lists
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Metadata
Record Modified: 2007-01-01
Research By: NPC
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