Prostrate Knotweed - Turfgrass Science at Purdue University
2013年3月18日 · Biology: Prostrate knotweed (Polygonum aviculare) is an early germinating summer annual broadleaf that is often found in low-oxygen soils, including compacted areas next to sidewalks and previously flooded areas. Germination starts in late February and early March in many Midwest states.
Prostrate Knotweed - How to control this invasive turfgrass …
2020年11月4日 · Found in all 50 states, prostrate knotweed is a very widespread and invasive weed that will overtake and destroy your turf and release toxins into your soil if not properly managed.
Prostrate Knotweed: The Creeping Weed that Likes Bad Soil
Prostrate knotweed (Polygonum aviculare) sprouts from seed in early spring. Its wiry stems at first resemble grass, but then the plant slowly creeps across the ground, making rounded mats of little blue-green leaves that can span 18 inches by summer.
Identifying prostrate knotweed (and how to distinguish it from …
2018年11月25日 · Prostrate knotweed is an annual (or sometimes short-lived perennial) weed that is widely distributed throughout North America. The species spreads by small (1.5-2 mm wide x 2.5-3 mm long), 3-sided, brown seeds that require a period of …
Polygonum aviculare - Wikipedia
Polygonum aviculare or common knotgrass is a plant related to buckwheat and dock. It is also called prostrate knotweed, birdweed, pigweed and lowgrass. It is an annual found in fields and wasteland, with white flowers from June to October.
Prostrate Knotweed - Penn State Extension
2022年12月19日 · Prostrate knotweed (Polygonum aviculare) is a summer annual. This plant grows in many areas such as lawns, landscape plantings, and unmanaged sites. It specializes in stressed areas, favoring compacted soil and low nutrients, …
Prostrate Knotweed - NC State Extension Publications
2025年1月20日 · Prostrate knotweed (Polygonum aviculare) is a low-growing summer annual or perennial which is very competitive in compacted soils. It is often a problem along driveways, sidewalks, and beaten paths. The slender stems radiate from a central taproot and produce a tough mat-like growth.
Prostrate Knotweed - University of Minnesota Twin Cities
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Prostrate knotweed | Integrated Crop Management - Iowa State …
General description: Prostrate to ascending growth habit with stems up to 2 ft long. Stems are wiry, branched, and swollen at nodes. Leaves alternate, lanceolate to elliptic, pointed at tip, usually less than ¾” long. Ochrea surrounds stem at leaf nodes. Flowers inconspicuous in …
Weeds: Prostrate knotweed – Polygonum aviculare | Hortsense ...
2024年6月22日 · Prostrate knotweed is a low-growing plant with wiry stems and a thin taproot. Plants branch extensively at the base, with branches lying along the ground but not rooting. The alternate, blue-green leaves are narrow, typically not exceeding an …