Ambrosia trifida - Wikipedia
网页Ambrosia trifida, the giant ragweed, is a species of flowering plant in the family Asteraceae. It is native to North America, where it is widespread in Canada, the United States, and northern Mexico. [1]
Ambrosia trifida — giant ragweed - Go Botany
网页It shares with common ragweed the allergenicity of its wind-dispersed pollen. It was used medicinally by Native American tribes including the Cherokee, Iroquois, Lakota and Meskwaki, and in former times the seeds may have been a food source, as seed caches have been found in ancient settlements.
Giant Ragweed (Ambrosia trifida) - Illinois Wildflowers
网页Giant Ragweed (Ambrosia trifida) has some ecological value to various insects and insectivorous songbirds as a source of food and protective cover, otherwise it is less important ecologically than Ambrosia artemesiifolia (Common Ragweed).
Ambrosia trifida (Giant Ragweed) - Minnesota Wildflowers
网页Photos and information about Minnesota flora - Giant Ragweed: 3 to 8 inch spike-like racemes of 1/8-inch yellow to greenish, short-stalked, petal-less flowers.
How to Identify and Avoid Ragweed - The Spruce
网页2024年7月30日 · Common ragweed's scientific name is Ambrosia artemisiifolia and giant ragweed's scientific name is Ambrosia trifida. Common ragweed often is easily confused with some other plants, such as mugwort , Ragweed is part of the Asteraceae family.
Giant ragweed | Integrated Crop Management
网页Giant ragweed Ambrosia trifida L. Family: Asteraceae (Composite family) Life cycle: Annual. Native status: Native to North America. Habitat: Crop fields, flood plains, field edges. General description: Erect plant up to 12 ft tall. Stems and leaves rough, leaves opposite with 3 to 5 deep lobes.
Giant ragweed | CALS
网页Giant ragweed. Ambrosia trifida L. Images above: Upper Left: Young plant of giant ragweed (Antonio DiTommaso, Cornell University). Upper Right: Giant ragweed male flower (Antonio DiTommaso, Cornell University). Bottom: Giant ragweed seedling (Antonio DiTommaso, Cornell University). Identification.