The potential effects of common ragweed (Ambrosia artemisiifolia) on nutrient loss from a recently disturbed old-field in Indiana were assessed by measuring nitrogen and phosphorus uptake and by ...

Pollen of the common ragweed (Ambrosia artemisiifolia) has higher concentrations of allergen when the plant is exposed to NO2 exhaust gases, according to new findings. Pollen of the common ragweed ...

D. E. Bianchi, D. J. Schwemmin and W. H. Wagner, Jr. 1. A study of staminate flowers of common ragweed (Ambrosia artemisiifolia L.) revealed six more or less defined stages, which are described: (a) ...

Ragweed is a nuisance you don’t need. At least two ragweed species are native to Colorado, giant ragweed (Ambrosia trifida) and common ragweed (Ambrosia artemisiifolia). These plants are likely to be ...

The different geographic and climatic regions from which ragweed pollen originates, as well as the degree of environmental pollution, may influence the severity of allergic reactions such as hay fever ...