usnea

noun
us·nea | \ˈəs-nē-ə, ˈəz- \

Definition of usnea 

: any of a genus (Usnea of the family Usneaceae) of widely distributed lichens (such as old-man's beard) that have a grayish or yellow pendulous freely branched thallus

First Known Use of usnea

1597, in the meaning defined above

History and Etymology for usnea

New Latin, from Arabic ushna moss

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Dictionary Entries near usnea

Üsküdar

USMC

USN

usnea

Usneaceae

usneoid

USNR

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The first known use of usnea was in 1597

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Usnea

noun
Us·nea | \ˈəs-nē-ə \

Medical Definition of Usnea 

: a genus of widely distributed lichens (family Usneaceae) including old-man's beard from which usnic acid is obtained

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