Plant Encyclopedia
Search and identify 1,000+ plants, flowers, trees, and succulents — with care, light, water, and how to tell them apart.
Cheatgrass
Cheatgrass is an invasive winter annual grass of the western United States, notorious for its sharp seeds and for fueling more frequent, intense wildfires across rangelands.
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Barnyardgrass
Barnyardgrass is a fast-growing annual grass and one of the world's most troublesome weeds of rice and row crops.
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Witchgrass
Witchgrass is a native North American annual grass famous for its huge airy seedhead that breaks off and tumbles in the wind, scattering seed as it rolls.
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Crabgrass
Crabgrass is a fast-growing annual grass and one of the most familiar lawn and garden weeds, spreading low across the ground from a central crown like the legs of a crab. It germinates in warm weather and dies with the first frost, leaving behind thousands of seeds.
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Yellow Nutsedge
Yellow nutsedge is a grass-like perennial sedge, not a true grass, that infests lawns, gardens and crops by spreading through underground tubers called 'nutlets'. The same tubers are also cultivated in some regions, where they are known as chufa or tiger nuts.
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Quackgrass
Quackgrass is an aggressive cool-season perennial grass that spreads by long, white underground rhizomes, making it one of the most persistent lawn and garden weeds.
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Sweet Corn
Sweet corn is a tender annual grass and a variety of maize grown as a warm-season garden crop. It forms a tall, single stalk topped by a feathery tassel, with husk-wrapped ears lower down.
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Sandbur
Sandbur is a warm-season grass infamous for its sharp, spiny seed burs that cling painfully to skin, clothing, and animal fur. It thrives in dry, sandy, disturbed soils and is a troublesome weed of lawns and pastures.
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Japanese Stiltgrass
Japanese stiltgrass is an aggressive annual grass from Asia that has become one of the most damaging invasive plants in eastern North American forests and shaded yards. It forms dense, sprawling mats that crowd out native ground flora.
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Bermuda Grass
Bermuda grass is a tough, sun-loving warm-season turfgrass prized for lawns and sports fields in warm climates, but notorious as an aggressive weed elsewhere. It spreads rapidly by both stolons and rhizomes.
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Foxtail
Foxtail is a group of annual grasses named for their bushy, bristly seed heads that resemble a fox's tail. They are common weeds of lawns, fields and roadsides.
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Nimblewill
Nimblewill is a wiry, warm-season perennial grass native to North America that often invades lawns as a patchy weed. It greens up late and turns straw-brown early, creating unsightly dormant patches.
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Goosegrass
Goosegrass is a tough warm-season annual weed forming flattened rosettes with a distinctive white or silvery center, thriving in compacted soils and high-traffic areas.
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Lemongrass
Lemongrass is a tall tropical grass with a bright citrus aroma, grown as a culinary grass and aromatic ornamental in warm gardens.
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Dallisgrass
Dallisgrass is a coarse, fast-growing perennial bunchgrass that is valued as forage in pastures but reviled as a tough, clumping weed in lawns.
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Annual Bluegrass
A low-growing, light-green annual grass that is one of the most widespread lawn and turf weeds in the world. It forms clumps, seeds prolifically even when mowed short, and turns unsightly in summer heat.
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Johnsongrass
Johnsongrass is a tall, aggressive perennial grass spread by both seed and creeping rhizomes; it is a major agricultural weed that is very difficult to eradicate.
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