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red weed in grass with seed heads

It is also one of the most nutritious plants on the planet, said to contain more healthful omega 3 fats than any other plant there is.   So before you poison it, consider instead harvesting it for use in salads or in stir-fries. As a preface to strained yogurt and garlic, the author says of purslane that it “has been present in many ancient cuisines all over the world for thousands of years.” Purslane is a personal favorite among the edible weeds listed here. If you like juicy foods, then this plant, being a succulent, furnishes plenty of juice in every bite.

A common lawn weed that resembles a type of clover but isn’t one is Oxalis stricta, better-known as sourgrass or as yellow wood sorrel.

For more environmentally friendly controls, you can simply to pull up the clover. Be aware, though that the presence of the clover in the first place indicates that your soil is lacking in nitrogen. If you remove the clover, you should add nitrogen in the form of compost or granular fertilizer. If entire patches of lawn are bare once the clover is removed, you should reseed these areas with turf grass. To prevent the reappearance of clover, keep these spots healthy and well-fed.

Purslane (Portulaca oleracea)

There are many species of clover, all of which homeowners would like to banish from the lawn. This is perhaps a mistake, as clovers are actually quite healthy for a lawn. It is fragrant, resists most pests, helps to aerate the soil, and best of all, as a member of the pea family, clover actually adds nitrogen to the soil. There is a lot to be said for a lawn that contains a healthy percentage of clover within its turf-grass blend. Besides red clover (Trifolium pratense), white clover (Trifolium repens) is the most common lawn clover.

The common dandelion is a member of the aster family. It arrived in North America from Europe and quickly established itself as a wildflower—and common lawn weed.

The Spruce / David Beaulieu

Unlike many lawn weeds, this one is indigenous to North America, not a foreign invader.

Very widely naturalised in Australia, and most abundant in the northern and eastern parts of the country. It is common in Queensland, the Northern Territory and eastern New South Wales and scattered in other parts of New South Wales, in southern Victoria, in northern and south-western Western Australia and some parts of South Australia. Also naturalised on Norfolk Island and Christmas Island. Widely naturalised elsewhere in the world, including southern USA (i.e. California, Arizona, New Mexico, Texas, Louisiana, Florida, Georgia and North Carolina) and on several Pacific islands (i.e. the Cook Islands, Fiji, French Polynesia, Guam, Kiribati, Nauru, New Caledonia, the Solomon Islands and Hawaii.

A short-lived or long-lived grass forming open tussocks with upright flowering stems up to 1 m tall. Its open seed-heads are usually a distinctive reddish colour when young. These seed-heads turn pink and then whitish in colour as they mature. Its numerous flower spikelets are covered in silky hairs that give the seed-heads a fluffy appearance.

A very common weed of roadsides, railways, parks, gardens, footpaths, disturbed sites, waste areas, pastures and crops in tropical and sub-tropical regions. Also present in temperate, semi-arid and arid areas.