Illustration of a pollen grain of a willow tree (Salix sp.). Each grain has an elongated form with rounded ends and a grooved and pitted surface. The willow tree flowers early in the year before its leaves appear. The pollen is a strong allergen and can cause allergic reactions such as rhinitis and hay fever, with some people developing asthma-like symptoms.
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Details
Creative#:
TOP27778998
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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