Methuselah's Beard Lichen
p.1 #1Methuselah's Beard Lichen
This lichen is fruticose, with very long stems and short, even side branches. It is considered the longest lichen in the world. The stems are usually 6 to 12 inches in length but are sometimes much longer. It is pale green to silvery-yellow. It has a distinct central cord, which is white. It may grow to be 20 feet in length. It predominantly reproduces asexually through fragmentation. Spore-producing structures are rarely observed. It can double its length each year.
Methuselah's Beard Lichen (Usnea longissima) and Spanish Moss (Tillandsia usneoides) both hang in wispy strands but are fundamentally different: the lichen is a fungus-algae combo, often with a stretchy white inner cord and bioindicator for clean air, while Spanish Moss is a flowering plant (bromeliad) with uniform strands, common in warm Southern US climates, and both are often confused due to their similar appearance. The key ID trick: pull a strand of lichen; the inner string snaps like a rubber band, which Spanish Moss lacks.
Edited on Dec 11, 2025 at 08:09 PM · View previous versions
Methuselah's Beard Lichen (Usnea longissima) and Spanish Moss (Tillandsia usneoides) both hang in wispy strands but are fundamentally different: the lichen is a fungus-algae combo, often with a stretchy white inner cord and bioindicator for clean air, while Spanish Moss is a flowering plant (bromeliad) with uniform strands, common in warm Southern US climates, and both are often confused due to their similar appearance. The key ID trick: pull a strand of lichen; the inner string snaps like a rubber band, which Spanish Moss lacks.
Edited on Dec 11, 2025 at 08:09 PM · View previous versions
Dec 11, 2025 at 08:00 PM
p.1 #2Methuselah's Beard Lichen
Tony, very interesting, it looks a little like Spanish moss. Bruce
Dec 11, 2025 at 08:02 PM
p.1 #3Methuselah's Beard Lichen
B Benson wrote:
Tony, very interesting, it looks a little like Spanish moss. Bruce
Thanks Bruce. They look similar, but Methuselah's Beard Lichen (Usnea longissima) and Spanish Moss (Tillandsia usneoides) both hang in wispy strands but are fundamentally different: the lichen is a fungus-algae combo, often with a stretchy white inner cord and bioindicator for clean air, while Spanish Moss is a flowering plant (bromeliad) with uniform strands, common in warm Southern US climates, and both are often confused due to their similar appearance. The key ID trick: pull a strand of lichen; the inner string snaps like a rubber band, which Spanish Moss lacks.
Tony, very interesting, it looks a little like Spanish moss. Bruce
Thanks Bruce. They look similar, but Methuselah's Beard Lichen (Usnea longissima) and Spanish Moss (Tillandsia usneoides) both hang in wispy strands but are fundamentally different: the lichen is a fungus-algae combo, often with a stretchy white inner cord and bioindicator for clean air, while Spanish Moss is a flowering plant (bromeliad) with uniform strands, common in warm Southern US climates, and both are often confused due to their similar appearance. The key ID trick: pull a strand of lichen; the inner string snaps like a rubber band, which Spanish Moss lacks.
Dec 11, 2025 at 08:10 PM
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p.1 #5Methuselah's Beard Lichen
TFS I have never seen this before. Thanks for the info and both great images.
John
John
Dec 12, 2025 at 08:36 AM
p.1 #6Methuselah's Beard Lichen
johnohio wrote:
TFS I have never seen this before. Thanks for the info and both great images.
John
Thanks John. Always something out there we have never seen before.
Tony
TFS I have never seen this before. Thanks for the info and both great images.
John
Thanks John. Always something out there we have never seen before.
Tony
Dec 12, 2025 at 10:19 AM