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Page Last Updated: March 8 2012
Smartweed / Buckwheat Family
7 species
Lady's Thumb - flower approx. 3 mm - raceme to 5 cm - leaves to 15 cm - height to 60 cm - Lower Don Valley (Leaside) - August 2009
Order: Polygonales
Family: Polygonaceae (Smartweed or Buckwheat family)
Genus: Polygonum (also Persicaria)
Species: Persicaria (also Vulgaris)
Kingdom: Plantae
Class: Magnoliopsida
Annual - mark on leaves was thought to resemble a lady's
thumbprint - native to Europe
thumbprint - native to Europe
Division: Magnoliophyta (Flowering plants)
Updated September 23 2010
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Curled Dock - flower approx. 4 mm - panicle to 60 cm - leaves 10 to 30 cm - height to 1.5 m - Richmond Hill (Beaver Creek) - August 2009
Order: Polygonales
Family: Polygonaceae (Smartweed or Buckwheat family)
Genus: Rumex
Species: Crispus
Kingdom: Plantae
Class: Magnoliopsida
Perennial - also known as Curly Dock, Yellow Dock - native
to Eurasia
to Eurasia
Division: Magnoliophyta (Flowering plants)
Updated February 12 2012
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Golden? Dock - flower approx. 7 mm - leaves to 10 cm - height to 60 cm - Leslie Spit - September 2010
Order: Polygonales
Family: Polygonaceae (Smartweed or Buckwheat family)
Genus: Rumex
Species: Maritimus?
Kingdom: Plantae
Class: Magnoliopsida
Annual / Biennial - also known as Maritime Dock - similar to
R. verticillatus (Swamp Dock) - native to Eurasia
R. verticillatus (Swamp Dock) - native to Eurasia
Division: Magnoliophyta (Flowering plants)
Updated March 8 2012
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Japanese Knotweed - flower 2 to 4 mm - fruit approx. 3 mm - leaves to 15 cm - height to 3 m - Lower Don Valley (Leaside) - September 2009
Order: Polygonales
Family: Polygonaceae (Smartweed or Buckwheat family)
Genus: Polygonum
Species: Cuspidatum
Kingdom: Plantae
Class: Magnoliopsida
Perennial - also known as Japanese or Mexican Bamboo
(not closely related to Bamboo) - binomial name also
Fallopia japonica and others - native to Asia
(not closely related to Bamboo) - binomial name also
Fallopia japonica and others - native to Asia
Division: Magnoliophyta (Flowering plants)
Updated January 4 2011
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Common Knotgrass - flower approx. 4 mm - leaves to 2.5 cm - height to 60 cm - High Park - August 2011
Order: Polygonales
Family: Polygonaceae (Smartweed or Buckwheat family)
Genus: Polygonum
Species: Aviculare
Kingdom: Plantae
Class: Magnoliopsida
Annual / Perennial - also known as Prostrate Knotweed,
Doorweed - native to Eurasia
Doorweed - native to Eurasia
Division: Magnoliophyta (Flowering plants)
Updated August 28 2011
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Pale Smartweed - flower approx. 3 mm - raceme to 10 cm - leaves 5 to 20 cm - height to 1.5 m - Lower Don Valley (Crother's Woods) - September 2010
Order: Polygonales
Family: Polygonaceae (Smartweed or Buckwheat family)
Genus: Polygonum (also Persicaria)
Species: Lapathifolium
Kingdom: Plantae
Class: Magnoliopsida
Annual - also known as Curlytop Knotweed - native to
Canada
Canada
Division: Magnoliophyta (Flowering plants)
Updated December 23 2011
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Pennsylvania Smartweed - flower approx. 5 mm - raceme to 5 cm - leaves to 15 cm - height to 90 cm - Humber Bay Park - September 2011
Order: Polygonales
Family: Polygonaceae (Smartweed or Buckwheat family)
Genus: Polygonum (also Persicaria)
Species: Pensylvanicum
Kingdom: Plantae
Class: Magnoliopsida
Annual - also known as Pennsylvania Knotweed, Pinkweed
- native to Canada
- native to Canada
Division: Magnoliophyta (Flowering plants)
Updated December 23 2011
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