Persicaria hydropiperoides | swamp smartweed

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36.056316, -112.08046
36° 3′ 22.77″ N, 112° 4′ 49.66″ W
36 3 22.77, 112 4 49.66

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If you don't carry a ruler you can use a quarter which is an inch in diameter. Although flowers may be easy to measure, the size often varies. Botanical descriptions often do not include the flower size so some of our size information may be wrong.

When a plant has clusters of small flowers you should measure the size of a flower even though it may be very small. Many plants have flowers that are not obvious and in that case we put them in the "Very Small" category.

Leaf Attachment

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Whorled

Habitat	Description
Alpine	Growing above timberline
Aquatic	Growing in or floating in water
Brush	Scab, chaparral, thicket, clearcut, scrub and similar terms
Cliff	On a cliff, rock wall or similar surface
Desert	Described as a desert, wash, arid or very dry area
Disturbed	Along a road, railroad, burned area, vacant lot and similar places
Epiphyte	Growing on a plant or on decaying plant material
Forest	In a grove, stand or woods or otherwise associated with trees
Grassland	A pasture, prairie, rangeland or steppe
Meadow	An area described as a meadow
Riparian	Near a stream, river, lake, seep or other wet area
Rocky	An outcrop, scree, talus area or other rocky area
Salt Marsh	An alkali or tidal area
Sand	An area described as sandy or a sand dune
Wetland	Marsh, swamp, bog, fen or wetland
Ignore	No habitat specified

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swamp smartweed

swamp smartweed Smartweed-Buckwheat Family
Persicaria hydropiperoides Polygonaceae
--show more--

English common names
  •swamp smartweed
  •water pepper
accepted scientific name
  •Persicaria hydropiperoides (Michx.) Small
rules for finding collection records
  •Persicaria hydropiperoides (124)
  •Persicaria persicarioides (0)
  •Polygonum hydropiperoides (82)
  •Polygonum opelousanum (0)
family name
  • Polygonaceae

Image Author: ©2003 Patrick Alexander
Image License: Author's permission
Image Source

Category: Wildflowers, Aquatic Plants
Flowers: No obvious petals, Five petals
Petal colors:

Flower size is about 0.1 inches
Leaf: Alternate, Simple
Plant Observed last week of September thru 1st week of July

How Likely at this Location (32%)

Name Match (100%)

Plant Showiness (36%)

Links to Plant Descriptions
Minnesota Wildflowers (8)
Illinois Wildflowers (3)
Flora of North America
Instituto Darwinion (1)
UW Herbarium (15)
E-Flora BC
Wikipedia English
Jepson
Flora São Bento do Sul
WFO Monographs
UF Aquatic & Invasive (4)
SEINet (9)
Backyard Nature (9)

Links to Plant Photos
Missouri Plants (29)
J. Reveal (16)
Flora Digital (9)
Flora de Santa Catarina (14)
Cal Photos (21)
Paul Slichter (7)
UT Austin BIO 406D (6)
iNaturalist (6)
Connecticut Botanical (4)
New Mexico Flora (4)
Cal Photos (8)
Flora Uruguay (2)
Wikimedia Commons (3)

Where the plant has been found

Credits

Habitat where plant was found

Wetland

Disturbed

Riparian

Elevation (m) vs. Time of Observation (Flowering)

Credits