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Potamogeton foliosus - leafy pondweed

Scientific Family
Potamogetonaceae
Synonyms
Potamogeton fibrillosus
Plant type
Forbs and Subshrubs
Origin
Native
Lifecycle
Perennial
Height
Length to 30 inches
Riparian
Yes

Densely matted and submerged rhizome with flattened stems.

Leaves without basal glands, 3 to 5 prominent veins. Stipules (leaf-like appendage found at the base of the leaf petiole) free from the leaf base or nearly so; leaves not filiform (thread-like) or setaceous (bristle-like).

Habitat

Shallow water in ponds, lakes, streams, and irrigation ditches.

Plant Community
Riparian
Low elevation
3000
High elevation
6300

Flower Characteristics

Upright cylindrical spikes with one or two whorls of flowers.

Flower color
Green
Flower shape
Inconspicuous
Tubular
No
First bloom month
May
Last bloom month
August
Flower clusters
Elongated

Leaf and Stem Characteristics

Leaves are submerged and spirally arranged.

Leaf type
Simple
Leaf color
Green
Leaf shape
Narrow
Leaf margin
Smooth
Leaf attachment
Alternate & Opposite
Leaves clasp
No
Leaf hairs
None
Spines
No

Fruit and Seed Characteristics

Fleshy, oval and pitted fruit with 3 keels.

Fruit type
Achene
Fruit color
Pale green to brown