Common Smoothcap - Atrichum undulatum

Alternative names
Catherine’s Moss
Description

This distinctive species can form extensive patches, usually dark green, but sometimes yellower when well-lit. The erect stems reach 7 cm, with leaves to 1 cm in length and are strongly crisped when dry. The leaves have up to seven plates of tissue running longitudinally up the leaf and over the nerve, which are clearly visible with a hand lens. It also has toothed leaf edges.

Cylindrical capsules are frequent, 3 to 4 mm long with a long weak beak of similar length, on a 2 to 4 cm long reddish seta.

Identification difficulty
Habitat

Usually found in shaded, well-drained woodlands on all but the most extreme soils. Can also be found on heaths, grasslands or rocky ledges.

UK Status

Very common and widespread in Britain.

VC55 Status

Frequent in Leicestershire and Rutland.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map

Species profile

Common names
Common Smoothcap
Species group:
Mosses & Liverworts
Kingdom:
Plantae
Order:
Polytrichales
Family:
Polytrichaceae
Records on NatureSpot:
60
First record:
10/11/1991 (Dennis Ballard)
Last record:
26/02/2024 (Hamzaoui, Uta)

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% of records within its species group

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