threads red through the forest floor mats

Size
Height: 5–10 cm
Lifespan
5–10 years
Diet
Obtains nutrients via photosynthesis. Requires consistent moisture and rich organic soil. Grows on forest floor, logs, and stream banks.
Habitat
Grows on forest floor, rotting logs, and stream banks in shaded forests. Forms sprawling, feathery mats of soft, yellowish-green leaves with a distinctive red stem that runs through the centre like a spine. The moss of the red thread, the one that looks like it remembers something.
Range
Found throughout the North and South Islands on damp soil, rotting logs, and stream banks in shaded forests. Most common in lowland and montane forests with consistent moisture. Also found in temperate regions worldwide.
Endemism
Native
Main Threats
None significant. This species is common and widespread. Localised threats include forest clearance, stream modification, and climate change reducing forest floor moisture.
Population
Not Threatened. Red-stemmed feather moss is common in forests throughout New Zealand, particularly in the South Island's beech forests and the North Island's western ranges. It grows on the forest floor, on rotting logs, and on stream banks.
Conservation Status
Not Threatened
Human Risk
harmless
Handling Note
common moss, safe to handle
Conservation Note
Native moss; not assessed by NZTCS as bryophytes are generally outside the scope of current threat classifications.
Te Ao Māori
No recorded Māori name distinguishes the red-stemmed feather moss from other mosses. Mosses were generally called pūkohu (mosses and lichens) or rimu (a general term for small, low-growing plants). The soft, yellowish-green mats with red stems would have been noticed. They looked like the bedding of the forest. Like the colour of the earth. But no distinct name survives. The red-stemmed feather moss was sometimes used as a bedding material. The soft, springy mats were gathered and dried. Then used to line sleeping places.
Soft, yellowish-green leaves. Overlapping. Giving the branches a smooth, continuous appearance. Pleurozium schreberi is the one that looks like it has a secret. It has stems that are creeping and sprawling. Reaching 5 to 15 centimetres in length. With branches arranged in a flat, feather-like pattern. But the most striking feature is the stem. A deep, reddish-brown that runs through the centre of the plant like a spine or a thread of blood. It is the moss of the red thread. The one that looks like it is holding onto a memory. The one that makes you wonder what it has seen. What makes it special is the red stem. Red-stemmed feather moss is one of the few mosses in New Zealand with a distinctly coloured stem. The stem is a deep, rich red. That contrasts beautifully with the soft, yellowish-green leaves. The colour is most visible when you look at the plant from the side. Or when you turn over a mat of moss. It is the moss of the hidden colour. The one that keeps its secret in its stem. The one that rewards a closer look. The leaves are soft and pliable. Not stiff like some other feather mosses. The leaves are arranged in a flat plane. Giving the branches their smooth, continuous appearance. The colour is a soft, yellowish-green. That seems to glow in the dim light of the forest. Under a hand lens, the leaves are beautiful. Each one a tiny green blade arranged in perfect order. Biologically, the red-stemmed feather moss reproduces by spores. Released from capsules on short stalks. It grows slowly. Forming sprawling mats that can cover large areas of the forest floor. It is a patient coloniser. Taking years to spread across a log or a bank. To find red-stemmed feather moss is to find the soft, yellowish-green mat on the forest floor. It is soft. Feathery. And red-stemmed. A living secret on the ground. You can lift a corner of the mat. See the red stem. The hidden colour. It is the moss of the red thread. The one that looks like it remembers something. The one that proves that the most beautiful things are often hidden just beneath the surface. Not Threatened. Red-stemmed feather moss is common in forests throughout New Zealand. Particularly in the South Island's beech forests and the North Island's western ranges. It grows on the forest floor. On rotting logs. And on stream banks.