Scientific Name: Chenopodium album.
Description: Lamb's quarters is a multi-branched, widespread, summer annual herb (lives only
one season). It grows 2-7 feet tall. It has 1-2 inch long, lance-shaped leaves. The flowers are small and densely clustered to form spikes that are upright or slightly spreading. It is found in the alkaline plains of the southwest United States where it grows in open habitats, waste areas and cultivated land. This plant is also called goosefoot, which describes the shape of the leaves.
Other: Lamb's quarters are related to the spinach family and is used for greens.
Scientific name: Iva Ciliata
Description: Rough Marshelder is an annual weed (lives only one season). It is a multi-branched plant that grows 6-7 feet tall. It has green, oval-shaped leaves and a green stalk. The flowers grow in long, course, erect spikes. It is distributed in the lower Mississippi River Valley area to New Orleans where it abounds in the delta area. Its distribution also follows the coast to West Texas. Rough Marshelder may be mistaken for ragweed as they have similar odors.
Other: It is believed that Rough Marshelder produces more pollen than ragweed.
Scientific name: Ambrosia artemisiifolia
Description: Common ragweed is a tall, annual weed (lives only one season) found in pastures, along roadsides, and in vacant lots. The multi-branched weed can grow as high as four feet. The stems have finely cleft multi-lobed, green leaves with blunt ends. The flowers grow in dense clusters in long spikes at the end of the stems. Common ragweed is widely distributed throughout North America. It is common in the Eastern and North Central States.
Other: The pollen from common ragweed is most frequently the cause of hay fever in allergy sufferers.
Scientific name: Rumex Acetosella
Description: Sheep sorrel is a small, ubiquitous perennial weed (lives more than two seasons) found in gardens, pastures, meadows and lawns. It is difficult to eradicate. Sheep sorrel grows 6 inches to 2 feet tall. The stem is slender, erect and branched at the top. The leaves are fleshy and vary in size and shape. The lower leaves are slender, pointed and have two lower lobes. The female flowers are red and the male flowers are yellowish-green in color. The small flowers occur at the end of the stem. Naturalized from Eurasia, it is distributed throughout the United States.
Other: Sheep sorrel is also called red sorrel. It is sometimes used as flavoring in cooking.