Ambrosia trifida

(redirected from Giant Ragweed)
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Related to Giant Ragweed: common ragweed
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Noun1.Ambrosia trifida - a coarse annual with some leaves deeply and palmately three-cleft or five-cleftAmbrosia trifida - a coarse annual with some leaves deeply and palmately three-cleft or five-cleft
ambrosia, bitterweed, ragweed - any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
References in periodicals archive ?
Acuron offers broad-spectrum control of more than 70 weeds in corn, including giant ragweed, common ragweed, Palmer amaranth, waterhemp, marestail, kochia, cocklebur, morningglory and Russian thistle.
This was the response ofa pioneer or colonizing species and a phenomenon widely documented for giant ragweed (Hartnett et al.
Asteraceae); common sunflower, Ambrosia aptera (DC) (Asteraceae); giant ragweed, Lactuca virose (L.