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lichen

Plant Spotlight: Usnea

Originally Posted January 20, 2015 Usnea is a lichen. A lichen is a combination of an algae and a fungus living symbiotically or together. Also known as Old Man’s beard, it grows in hair-like tufts and depending on where it is growing, it can be short or quite long, literally dripping from the trees. The green […]

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