A shitpost but deserves some nerdy clarification. Flowers pollinated by animals(bees, ants, moths, bats, etc) are almost never the source of hay fever type allergies. These include almost every flower you can think of including the tulips seen here.

The ones that are wind-pollinated produce the respiratory allegic reactions. These are oaks, gingko, willows, pines, cedars, most grasses (rice, corn, wheat, barley, rye, bamboo), hops, ragweed (not goldenrod as is often conflated) etc.

The exception are moulds, but they are not pollen-producing nor even flowers at all. They produce spores. If you want to have a mind fuck look up the reproduction cycle of ferns, moulds, etc.