Amaranthus, collectively known as amaranth, is a cosmopolitan genus of annual or short-lived perennial plants. Some amaranth species are cultivated as leaf vegetables, pseudocereals, and ornamental plants. Most of the Amaranthus species are summer annual weeds and are commonly referred to as pigweed.
Common couch is a native perennial grass found throughout the British Isles. It grows on most soil types except those with a low pH. It prefers heavier land but is able to spread more readily in lighter soils. The UK distribution of common couch closely follows that of cultivated land.
The purslane plant can be a difficult weed to control due to its multiple survival methods. Much like a zombie, even after you think you have killed it, it can come back to life again and again. The purslane weed can be controlled though, if you are familiar with all of the ways it can thwart you trying to remove it.
1. Dandelion . The quintessential garden and lawn weed, dandelions have a bad reputation among those who want grass that looks as uniform as a golf course, but every part of this common edible weed is tasty both raw and cooked, from the roots to the blossoms.
Pigweed, Amaranthus retroflexus, is a common weed found all across the North American continent. The weed is known by many names, including rough pigweed, redroot pigweed, redroot amaranth, green amaranth, wild beet, pigweed amaranth, red-root pigweed and careless weed.
Ribwort plantain is a common perennial weed of arable fields and grassland, widespread throughout the UK on a range of soils. It may behave as a biennial or even an annual but is a true perennial with a thick short rhizome. It is a common roadside plant.