1. Amazon.com : Herba Organica - Knotgrass Herb - Polygonum Aviculare L - Birdweed, Lowgrass, Pigweed (100g) : Grocery & Gourmet Food

2. Birdweed; Doorweed; Knotgrass; Lowgrass; Pigweed; Prostrate Knotweed; Wiregrass; Phonetic Spelling po-LI-go-num a-vik-yoo-LAIR-ee Description

3. In addition, Curtail also controls many annual broadleaf species, such as wild mustard, wild buckwheat, pigweed, lambsquarters, volunteer sunflower and more.

4. In addition, Curtail also controls many annual broadleaf species, such as wild mustard, wild buckwheat, pigweed, lambsquarters, volunteer sunflower and more.

5. In addition, Curtail also controls many annual broadleaf species, such as wild mustard, wild buckwheat, pigweed, lambsquarters, volunteer sunflower and more

6. 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

7. Cleavers (Galium aparine), common ragweed (Ambrosia artemisiifolia), corn spurry (Spergula arvensis), groundsel (Senecio vulgaris), hairy nightshade (Solanum spp), hempnettle (Galeopsis tetrahit), kochia (Kochia scoparia), lady’s thumb (Polygonum persicaria), lamb’s quarters (Chenopodium album), low cudweed (Gnaphalium uliginosum), redroot pigweed (Amaranthus retroflexus), round leaved mallow (Malva pusilla), velvet leaf (Abutilon theophrasti)wild buckwheat (Polygonum convolulus ) and wild radish (Raphanus raphanistrum).