AppearanceThis lichen is fruticose with 2 to 5 cm long branches and abundant terminal apothecia about 5 mm wide.
Distribution''U. strigosa'' has worldwide distribution. It is a common tree lichen in Eastern and Southeastern North America.
Habitat''U. strigosa'' grows on trees. The most frequent hosts of this lichen are oak trees. The photosynthetic symbionts of ''Usnea'' species are Chlorophyta green algae.
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