Ragweed
/ˈræɡwiːd/
Definition 1 of 1
Pro Tip 1/3Allergy Trigger
Ragweed releases pollen that causes allergic reactions. Mentioning ragweed may imply allergies. 
When ragweed season arrives, pharmacies stock up on antihistamines.
Pro Tip 2/3Seasonal Relevance
Ragweed blooms in late summer. Its mention may refer to that time of year. 
By late August, the fields are full of blooming ragweed.
Pro Tip 3/3Environmental Context
Ragweed is often used in discussions regarding environmental allergies and air quality. 
The city reported higher ragweed pollen counts this week.