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Pennsylvania smartweed is a variable annual herb reaching 10 cm (3.9 in) to 2 m (6.6 ft) tall. The upright, ribbed stems are branching or unbranched. The lance-shaped leaves have a short petiole and a blade about 4–17 cm (1.6–6.7 in) long, sometimes up to 23 cm (9 in). The blade may be marked with a dark blotch.
Smartweed: Polygonum spp. Perennial 8 9 feral major F Selfheal: Prunella vulgaris: Perennial 7 8 no feral minor F Lungwort: Pulmonaria spp. Perennial 5 5 no feral minor F Appalachian mountain mint: Pycnanthemum flexuosum: Perennial 8 10 minor F Azalea: Rhododendron spp. Perennial 6 8 no ornamental minor F Russian sage: Salvia × floriferior ...
Illustration from the Japanese agricultural encyclopedia Seikei Zusetsu (1804). Persicaria is a genus of herbaceous flowering plants in the knotweed family, Polygonaceae.Plants of the genus are known commonly as knotweeds [2]: 436 or smartweeds. [3]
Smartweed: Polygonum spp. Aug – Sep Common Chickweed: Stellaria media: Apr – Jul minor source Germander: Teucrium chamaedrys: Jul – Aug Alsike Clover: Trifolium hybridum: yellow brown good source Crimson Clover: Trifolium incarnatum: dark brown White Clover: Trifolium repens: Jun – Jul caledonian brown good source Cat-tail: Typha ...
Polygonum is a genus of about 130 species of flowering plants in the buckwheat and knotweed family Polygonaceae.Common names include knotweed and knotgrass (though the common names may refer more broadly to plants from Polygonaceae).
Ralph said specific native plants that were previously prohibited but allowed under the new ordinance include Canada goldenrod, daisy fleabane, dogbane, fall panicum, hoary verbena, ironweed ...
The Polygonaceae are a family of flowering plants known informally as the knotweed family or smartweed—buckwheat family in the United States. The name is based on the genus Polygonum , and was first used by Antoine Laurent de Jussieu in 1789 in his book, Genera Plantarum . [ 2 ]
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