noun
- Greenish grey pendulous lichen growing on trees.
- synonyms: beard lichen, beard moss
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). usnea barbata. Retrieved September 22, 2026, from http://smartdefine.org/usnea_barbata/definitions/1318644 |
| Chicago | WordNet. 2010. "usnea barbata" http://smartdefine.org/usnea_barbata/definitions/1318644 (accessed September 22, 2026). |
| Harvard | WordNet 2010, usnea barbata, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/usnea_barbata/definitions/1318644>. |
| MLA | WordNet. "usnea barbata" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/usnea_barbata/definitions/1318644> |