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AGAVE AND YUCCA | CACTI | WILDFLOWERS

Persicaria Amphibia, Water Smartweed


Plants > Wildflowers > Polygonaceae > Persicaria Amphibia
Water Smartweed; Pink flower cluster - persicaria amphibia (water smartweed), Grand Teton National Park
Pink flower cluster - persicaria amphibia (water smartweed), Grand Teton National Park
Common names:
Water smartweed, water knotweed, longroot smartweed
Family:
Buckwheat (Polygonaceae)
Scientific name:
Persicaria amphibia
Synonym:
Polygonum amphibium
Main flower color:
Pink
Range:
All the western states
Height:
Low - grows sideways, often floating on water; stems may be 9 feet long
Habitat:
In or alongside water; lakes, ponds, streams, marshes and moist meadows; up to 9,500 feet
Leaves:
Ovate or lanceolate, up to 5 inches long. Alternate. Stalked
Season:
June to September
Pintrest
Persicaria amphibia is an amphibious plant, usually growing semi-submerged along the edge of lakes or on land, in marshy areas and meadows; it has large, shiny green leaves and dense, elongated (up to 6 inches) clusters of small pink flowers, at the end of short stalks. Stems may be hairless or have a covering of short or long hairs. Leaves are oval-shaped for aquatic plants and more lanceolate for those on land, where the stems grow upwards more than sideways, and can reach heights of 3 feet.

Individual flowers have five lobes, opening to reveal either five thin white stamens (which may be slightly exserted), or two styles - plants produce either staminate of pistillate flowers.




Large leaves
Large leaves
Water Smartweed
Flowers and leaves
Butterfly
Butterfly
Small flower cluster
Small flower cluster
Pale pink flowers
Pale pink flowers
Veined leaves
Veined leaves
Upright stem
Upright stem
Two flower clusters
Two flower clusters
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