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A bad oak day would be 800, meaning 800 pollen grains landing in a defined area compared with 12,000 pollen grains for cedar. In the very worst cedar fever years , Austin has seen some days with ...
Ashe juniper trees, a type of mountain cedar, are the predominate cedar fever culprit and start producing pollen in mid-December triggered by cold fronts, according to the Texas A&M Forest Service ...
Austin's itchiest season is about to begin. Here's what you need to know to get through cedar fever.
Juniperus ashei (Ashe juniper, mountain cedar, blueberry juniper, post cedar, or just cedar) is a drought-tolerant evergreen tree, native from northeastern Mexico and the south-central United States to southern Missouri. The largest areas are in central Texas, where extensive stands occur.
A pollen count is a measurement of the number of pollen grains in a given volume of air. Pollen counts, and forecasts of pollen conditions, are routinely produced and reported to the public because high aerial pollen concentration is associated with increased rates of allergic reaction for those with conditions such as hay fever and asthma .
Cedrus atlantica foliage and mature female cone Male cones beginning to shed pollen. Fully grown, Atlas cedar is a large coniferous evergreen tree, 30 to 35 m (98 to 115 ft) (rarely 40 m) tall, with a trunk diameter of 1.5 to 2 m (4.9 to 6.6 ft).
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Cryptomeria stamens and pollen. Hay fever in Japan (花粉症, kafunshō, "pollen illness") is most commonly caused by pollen from Cryptomeria japonica (known as sugi in Japanese and often translated as "cedar" though it is not a member of the Cedrus genus) and Japanese cypress (known as hinoki), two native Japanese tree species.