# water smartweed (*Persicaria amphibia*)

Water smartweed is a fun plant that grows in wet places like ponds and marshes. It has pretty green leaves and tiny pink flowers that attract butterflies and bees!

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 8
- **Habitat:** Wetlands

![water smartweed](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Fig._04_Polygonatum_amphibium.jpg&width=800)

Photo: Ruppia2000, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Fig._04_Polygonatum_amphibium.jpg)

## Appearance

The water smartweed is a unique plant with bright pink to reddish-purple flower spikes that rise above the water or grow on land. Its leaves can be narrow and floating, or broader and erect, changing shape depending on its environment.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Magnoliopsida
- **Order:** Caryophyllales
- **Family:** Polygonaceae
- **Genus:** Persicaria

## Interesting facts

- Ancient people sometimes made a spicy tea from its leaves and stems!
- Its small flowers cluster into fuzzy pink "bottlebrushes" that bees adore!
- Sometimes, tiny galls (lumps) form on its stems where insects hide inside!
- The seeds can lie dormant in mud for over 60 years and still sprout!

## Special abilities

- **Shape-shifting Leaves:** Water smartweed has different leaf shapes – floating pads in water, and upright blades on land – that help it thrive in changing environments.
- **Underwater Roots:** Water smartweed can grow long, creeping roots underwater that help it anchor firmly and spread widely across the pond floor.
- **Floating Seeds:** Water smartweed produces special seeds that can float on water, helping them travel to new places to grow and reproduce.

## Measurements & details

- **Height:** 30-100 cm
- **Spread:** 50-200 cm
- **Flower Size:** 0.3-0.4 cm
- **Bloom Season:** Summer to Fall
- **Edible:** Yes
- **Toxicity:** None
- **Lifecycle:** Perennial
- **Pollination Method:** Insect

## Ecological connections

- **Pollinates:** European honey bee (*Apis mellifera*) — collects nectar and pollen from its flowers.
- **Eats:** Mallard duck (*Anas platyrhynchos*) — forages for its nutritious seeds in shallow water.
- **Eaten by:** Marsh pondsnail (*Stagnicola elodes*) — grazes on its submerged leaves and tender shoots.
- **Eats:** [Waterlily leaf beetle](https://www.snappit.app/explore/waterlily-leaf-beetle) (*Galerucella nymphaeae*) — larvae and adults feed on its leaves.

## Traits

- [Herbaceous](https://www.snappit.app/explore/traits/herbaceous): Herbaceous plants are non-woody plants with soft stems that typically die back to the ground at the end of the growing season.
- [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle.
- [Medicinal](https://www.snappit.app/explore/traits/medicinal): Medicinal plants possess chemical compounds that can be used for therapeutic purposes to treat illnesses or maintain health.
- [Edible](https://www.snappit.app/explore/traits/edible): Edible plants are those parts of a plant that are considered safe for human consumption.
- [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms.
- [Rapid Growing](https://www.snappit.app/explore/traits/rapid-growing): Rapid growing plants exhibit accelerated growth rates, quickly increasing in size and biomass within a short period.
- [Wetland](https://www.snappit.app/explore/traits/wetland): This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs.
- [Freshwater](https://www.snappit.app/explore/traits/freshwater): Freshwater habitats include non-saline aquatic environments such as rivers, lakes, ponds, and wetlands, vital for numerous species.
- [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:** 1/5 · Very low

Always stay close to an adult when exploring near water plants.

## Frequently Asked Questions

### How to identify water smartweed?

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 water smartweed?

30-100 cm

### How wide does water smartweed spread?

50-200 cm

### How big are the flowers on water smartweed?

0.3-0.4 cm

### When does water smartweed bloom?

Summer to Fall

### Is water smartweed edible?

Yes

### Is water smartweed toxic?

None

### What is water smartweed's lifecycle?

Perennial

## Where to spot

- [Circleville Historic District](https://www.snappit.app/guides/places/circleville-historic-district) — Ohio, US · Historic District
- [Gensburg-Markham Prairie](https://www.snappit.app/guides/places/gensburg-markham-prairie) — Illinois, US · Nature Reserve
- [Grand Caverns](https://www.snappit.app/guides/places/grand-caverns) — Virginia, US · Natural Landmark
- [Hakone Gardens](https://www.snappit.app/guides/places/hakone-gardens) — California, US · Botanical Garden
- [Lock and Dam No. 17](https://www.snappit.app/guides/places/lock-and-dam-no-17) — Illinois, US · Historic Site
- [Sedgwick County Zoo](https://www.snappit.app/guides/places/sedgwick-county-zoo) — Kansas, US · Zoo

[View all places to see water smartweed](https://www.snappit.app/guides/where-to-see/water-smartweed)

## 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*)

---

Source: [Water Smartweed: Facts & Places to See — Snappit](https://www.snappit.app/explore/water-smartweed)
