ragweed botanical family ragweed botanical family ragweed botanical family the original Ragweed Allergy Asthma and Allergy Foundation of America: Ragweed Allergy the original http://www.aafa.org/display.cfm?id=9&sub=19&cont=267 http://www.aafa.org/display.cfm?id=9&sub=19&cont=267 according to the Asthma and Allergy Foundation of America Asthma and Allergy Foundation of America: Ragweed Allergy http://www.aafa.org/display.cfm?id=9&sub=19&cont=267 http://www.aafa.org/display.cfm?id=9&sub=19&cont=267 Allergy and Asthma Foundation website the original according to the Asthma and Allergy Foundation of America