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Racomitrium lanuginosum
Also called Woolly Fringe Moss, Woolly Hair Moss, Hoary Rock Moss
Racomitrium lanuginosum is a hardy moss that forms large, grey-green cushions on exposed rock and boulder scree in cold, windy, often mountainous places. Its key to growing is cool, open, exposed conditions with no need for soil or feeding.
Racomitrium lanuginosum is a widespread species of moss found in montane and arctic tundra, the genus Racomitrium is found across the Northern and Southern hemispheres., however Racomitrium lanuginosum is only found in the Northern hemisphere. It grows as large mats on exposed rock and in boulder scree, particularly on acidic rocks. Its leaves have a characteristically decurrent and toothed hair-point, which gives rise to its regional common names woolly fringemoss, hoary rock-moss and woolly moss.
Racomitrium lanuginosum grows from sea level to the alpine zone, particularly among boulder scree and on exposed rock surfaces. It will also grow in tundra or bogs. It is more frequently found on acidic rocks than calcareous ones.
Text excerpted from the Wikipedia article Racomitrium lanuginosum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
