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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.
Polygonum pensylvanicum – Pennsylvania smartweed or pink knotweed or pinkweed → Persicaria pensylvanica; Polygonum perfoliata – Asiatic Tearthumb → Persicaria perfoliata; Polygonum persicaria – redshank or persicaria or lady's thumb → Persicaria maculosa; Polygonum praetermissum → Persicaria praetermissa
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]
Persicaria virginiana, also called jumpseed, [2] Virginia knotweed or woodland knotweed [3] is a North American species of smartweed within the buckwheat family. It is unusual as a shade-tolerant member of a mostly sun-loving genus. Jumpseed is a perennial, named for its seeds which can "jump" several feet when a ripe seedpod is disturbed.
Persicaria lapathifolia is an annual herb with erect reddish stems with swollen joints, growing to a height of 20 to 80 cm (8 to 31 in). The leaves are alternate with short stalks, often densely hairy underneath.
Something new could be sprouting up in the gardens of Overland Park this growing season. The city has updated an ordinance — known as the city’s weed and vegetation enforcement act — that ...
The Pennsylvania parents of a 21-year-old blind and deaf man with cerebral palsy who died in September after being starved for months have been charged in connection to his death, authorities ...
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 ...
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