Portraits of Wildflowers

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Archive for March 14th, 2020

Usnea trichodea

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During a March 6th visit to Buescher State Park we saw plenty of grayish-tan stuff conspicuously hanging from trees. Three years ago and a little further east in Texas I thought I was looking at Spanish moss, Tillandsia usneoides, but reader Bill Dodd clued me in that it was most likely the lichen Usnea trichodea, which people apparently call bony beard lichen. Notice how Spanish moss’s species name, usneoides, even means ‘looking like Usnea’. Further evidence comes from the fact that the USDA distribution map for Spanish moss is not marked for Bastrop County, which is where Buescher State Park is located. Some ball moss, Tillandsia recurvata, in the upper parts of the trees in both photographs adds to the complexity of the situation.

© 2020 Steven Schwartzman

Written by Steve Schwartzman

March 14, 2020 at 4:42 AM

Posted in nature photography

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