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Pollen is produced in the microsporangia in the male cone of a conifer or other gymnosperm or in the anthers of an angiosperm flower. Pollen grains come in a wide variety of shapes, sizes, and surface markings characteristic of the species (see electron micrograph, right). Pollen grains of pines, firs, and spruces are winged.
Jun 4, 2024 · Pollen is a fine dust of microspores produced by seed plants for fertilization. Learn about its characteristics, importance, and how it is used in medicine, palynology, and geology.
- The Editors of Encyclopaedia Britannica
Jun 26, 2018 · Pollen allergy is a common condition that causes itchy eyes, sneezing, and congestion. Learn about the types of pollen, how to diagnose and treat them, and some home remedies that may help.
- Rachel Nall, MSN, CRNA
May 26, 2023 · Learn about pollen allergies, which are caused by the immune system's reaction to harmless pollen from plants. Find out how to diagnose, treat, and prevent pollen allergy symptoms, such as sneezing, runny nose, and itchy eyes.
Nov 20, 2023 · Learn about pollen allergy, a type of seasonal allergy triggered by pollen from plants, trees and grasses. Find out how to diagnose, manage and prevent pollen allergy symptoms with medications, allergy shots or lifestyle changes.
Jun 3, 2024 · Pollen count is the measurement of the average number of grains of pollen in a cubic meter of air. Pollen counts can fluctuate throughout the week and even throughout the day.
Feb 28, 2024 · By Mayo Clinic Staff. Spring means flower buds and blooming trees — and if you're one of the millions of people who have seasonal allergies, it also means sneezing, congestion, a runny nose and other bothersome symptoms. Seasonal allergies — also called hay fever and allergic rhinitis — can make you miserable.
