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  1. More Images

    Persicaria lapathifolia

    Persicaria lapathifolia, known as pale persicaria, is a plant of the family Polygonaceae. It is considered to be native throughout most of the world, from arctic to tropical realms, except South America and Southern Africa. It is closely related to Persicaria maculosa and as such is considered a weed in Britain and Europe. Other common names for the plant include pale smartweed, curlytop knotweed, and willow weed. It is a species complex made up of a great many varying forms, sometimes considered varieties. The environment also has a strong influence on the morphology of an individual plant. Wikipedia

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  2. en.wikipedia.org

    Persicaria lapathifolia (syn. Polygonum lapathifolium), known as pale persicaria, [2] is a plant of the family Polygonaceae.It is considered to be native throughout most of the world, from arctic to tropical realms, except South America and Southern Africa. [3] It is closely related to Persicaria maculosa and as such is considered a weed in Britain and Europe.
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  4. southwestdesertflora.com

    See ethno-botanical uses at Native American Ethnobotany, University of Michigan, Dearborn (as Polygonum lapathifolium). Date Profile Completed: 06/08/2016, updated format 10/01/2017 References: U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database and USGS ITIS search -
  5. minnesotawildflowers.info

    Nodding Smartweed, formerly known as Polygonum lapathifolium, is native to both the eastern and western hemispheres and in North America a mix of both native and non-native ecotypes is likely present. In Minnesota it is arguably the largest of the smartweeds and can most easily be distinguished from other Smartweeds by its long, drooping flower ...
  6. wric.ucdavis.edu

    Polygonum lapathifolium 1 of 3 2013 . A WEED REPORT from the book Weed Control in Natural Areas in the Western United States Ladysthumb and pale smartweed . These plants grow in wet locations, so burning is not a feasible control method. Improving drainage can help to control smartweed populations.
  7. cabidigitallibrary.org

    Polygonum lapathifolium L. [=Persicaria lapathifolia (L.) Delarbre] is a widespread and variable species.However, P. lapathifolium normally reproduces autogamously and this has led to the production of numerous pure lines, many of which are locally constant and have been named as species or subspecies. One of these is P. nodosum Pers., with glabrous leaves, yellow foliar glands, and pink ...
  8. gobotany.nativeplanttrust.org

    Native: indigenous. Non-native: introduced (intentionally or unintentionally); has become naturalized. County documented: documented to exist in the county by evidence (herbarium specimen, photograph). Also covers those considered historical (not seen in 20 years).
  9. weedid.cals.vt.edu

    Polygonum lapathifolium . ← → Other Common Names: pale smartweed. curltop ladysthumb. Synonyms (former Scientific Names): ... Polygonum nodosum . Persicaria tomentosa . Polygonum scabrum . Polygonum incanum . Polygonum pensylvanicum . Polygonum oneilli . Habit. This erect summer annual can grow from 3 to 5 feet tall, and can be found ...
  10. illinoiswildflowers.info

    Another difference between these two species is the size of their seeds: Pale Smartweed has seeds up to 2 mm. across, while Pennsylvania Smartweed has seeds that are more than 2 mm. across. Another common name for Pale Smartweed is Heart's Ease, while Polygonum lapathifolium is a scientific synonym for this species. Return
  11. ipm.ucanr.edu

    Pale smartweed (Polygonum lapathifolium) Click on images to enlarge . Identify a weed; List of all weeds; Key to weeds in turf; Pale smartweed is a summer annual broadleaf plant that typically inhabits areas in or around water. It is found throughout California to about 4900 feet (1500 m) and grows in or on the edges of marshes, lakes, ponds ...
  12. calflora.org

    Polygonum lapathifolium L. (not an active name) Common knotweed, Curlytop knotweed, Willow smartweed, Willow weed. Polygonum lapathifolium is an annual herb that is native to California, and also found elsewhere in North America and beyond. also called Persicaria lapathifolia Plant Range. Observation Search ~1044 records in California ...

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