Pollen grains Pollen Grains 1. This pollen type has bladders which give it buoyancy. It is dispersed far from its parent plant by wind. Therefore, pine pollen can often be collected in areas far from any pine trees, such as in the Arctic.
Pine trees are abundant in the modern boreal forest, which stretches across the north of Canada.
Pine pollen is one of the most common types found in most Holocene pollen records from Canada. This grain is about 150 micrometres across. This plant is pollinated by insects. Thus the grain is relatively large and sticky, often forming clumps of several grains, so that it attaches to insects as they visit the flower. Fireweed is a common plant in Canada.