# Richardson's Pondweed (*potamogeton richardsonii*)

Richardson's Pondweed is a beautiful aquatic plant that grows in lakes and ponds! Its long, green leaves provide a home for many small creatures in the water.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 0/5 · No known danger
- **Habitat:** Freshwater lakes and ponds
- **Also known as:** Aquatic Plant, Pondweed, Waterweed

![Richardson's Pondweed](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Potamogeton_richardsonii.jpg&width=800)

Photo: Robert H. Mohlenbrock, Public domain · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Potamogeton_richardsonii.jpg)

## Appearance

The Richardson'S Pondweed has broad, stiff, and often wavy leaves that lack stalks, growing submerged in water. Its coloring ranges from bright green to olive or reddish-brown. Small, spiky flower heads sometimes emerge just above the water surface.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Liliopsida
- **Order:** Alismatales
- **Family:** Potamogetonaceae
- **Genus:** Potamogeton

## Interesting facts

- Fish hide in its leafy underwater maze to escape bigger predators!
- Instead of deep roots, it uses special underground stems to anchor itself!
- Richardson's Pondweed can grow up to 10 feet long, creating underwater 'highways'!
- Sometimes its leaves turn a surprising reddish-brown, not just green!

## Special abilities

- **Current Anchor:** Richardson'S Pondweed has strong, flexible stems that help it withstand fast-moving water without breaking.
- **Underwater Air Factory:** Richardson'S Pondweed can release oxygen into the water, providing vital air for fish and other aquatic creatures.
- **Nutrient Sponge:** Richardson'S Pondweed absorbs excess nutrients from the water, which helps keep the aquatic ecosystem healthy and balanced.
- **Rhizome Runner:** Richardson'S Pondweed can spread rapidly with underground stems called rhizomes, colonizing new areas effectively.

## Measurements & details

- **Height:** 50-300 cm
- **Flower Size:** 0.1-0.3 cm
- **Bloom Season:** Summer
- **Edible:** Yes
- **Toxicity:** None
- **Lifecycle:** Perennial
- **Pollination Method:** Wind

## Ecological connections

- **Eaten by:** Mallard (*Anas platyrhynchos*) — Ducks eat its leaves and seeds
- **Eaten by:** [Moose](https://www.snappit.app/explore/moose) (*Alces alces*) — Moose browse on its submerged foliage
- **Shelter:** [Yellow Perch](https://www.snappit.app/explore/yellow-perch) (*Perca flavescens*) — Small fish hide among its dense beds
- **Shelter:** Common Midge (*Chironomus plumosus*) — Larvae live among its leaves
- **Eaten by:** [Common Carp](https://www.snappit.app/explore/common-carp) (*Cyprinus carpio*) — Carp feed on aquatic vegetation

## Traits

- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [Filter Feeder](https://www.snappit.app/explore/traits/filter-feeder): Filter feeders obtain nutrients by straining suspended food particles and small organisms from water.
- [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material.
- [Decomposer](https://www.snappit.app/explore/traits/decomposer): Describes organisms that break down dead organic material, recycling nutrients back into the ecosystem.
- [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands.

## Collections

- [Plants](https://www.snappit.app/explore/collections/plants)

## Safety

**Danger:** 0/5 · No known danger

No special safety notes yet.

## Frequently Asked Questions

### How to identify Richardson's Pondweed?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

### How tall is Richardson's Pondweed?

50-300 cm

### How big are the flowers on Richardson's Pondweed?

0.1-0.3 cm

### When does Richardson's Pondweed bloom?

Summer

### Is Richardson's Pondweed edible?

Yes

### Is Richardson's Pondweed toxic?

None

### What is Richardson's Pondweed's lifecycle?

Perennial

### How is Richardson's Pondweed pollinated?

Wind

## Where to spot

- [Maheras-Gentry Park](https://www.snappit.app/guides/places/maheras-gentry-park) — Michigan, US · Park

## More Plants

- [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*)
- [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*)
- [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*)
- [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*)

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Source: [Richardson's Pondweed: Facts & Places to See — Snappit](https://www.snappit.app/explore/richardsons-pondweed)