- Usnea filipendula Stirt.
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(Map updated: 11 August 2009)
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Look for this ‘beard’ lichen on coniferous trees and wooden fence posts in high-rainfall areas. The pale green to yellow-green colour, straggling habit with numerous short branches projecting from the main branches which are packed with isidia, gives it a distinctive fish-bone appearance. Where it occurs, it can become local abundant. Upland areas in Ireland, but currently absent from the south.
Key characteristics
- Thallus pale green to yellow, straggling and stringy
- Branches with fish-bone appearance.
Original text submitted by Vince J. Giavarini