Definitions for ragweedˈrægˌwid
This page provides all possible meanings and translations of the word ragweed
ragwort, tansy ragwort, ragweed, benweed, Senecio jacobaea(noun)
widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
ragweed, ambrosia, bitterweed(noun)
any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
A plant of the genus Ambrosia. These weeds are particularly noted for producing pollen which people with hay fever are allergic to.
a common American composite weed (Ambrosia artemisiaefolia) with finely divided leaves; hogweed
Ragweeds are flowering plants in the genus Ambrosia in the sunflower family Asteraceae. Common names include bitterweeds and bloodweeds. The name Ambrosia is sometimes claimed to be derived from the Ancient Greek term ἀμβροσία referring to the food of the gods of Mount Olympus that conferred immortality. The term might refer to the tenacity of the plants, which makes it hard to rid an area of them if they occur as invasive weeds. The genus is best known for the severe and widespread allergies caused by its pollen. Ragweeds occur in temperate regions of the Northern Hemisphere and South America. Ragweeds prefer dry, sunny grassy plains, sandy soils, river banks, roadsides, and ruderal sites such as vacant lots and abandoned fields. There are 41 species worldwide. Many are adapted to the arid climates of the desert. Burrobush is one of the most arid-adapted perennials in North America. About 10 species occur in the Sonoran Desert.
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