Buckiella undulata (Hedw.) B.S.G.
flat-moss (undulate plagiothecium moss)

Species Account Author: Wilf Schofield
Extracted from Some Common Mosses of BC

Introduction to the Bryophytes of BC


© Gwen L'Hirondelle     (Photo ID #73128)


E-Flora BC Static Map

Distribution of Buckiella undulata
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Species Information

Species description:
Species name describing the undulations of the leaves.
Sporophytes occasional, red-brown and grooved when ripe in late spring.
Distinguishing characteristics:
The habitat on soil, humus or rotten logs combined with the pale, yellow-green to whitish-green colour, the flattened leafy shoots in which the leaves are undulate, plus irregular branching, lack of obvious glossiness and presence of grooved sporangia on a long seta make this moss distinctive.
Forming pale, yellow-green to whitish-green mats of undulate leafed shoots.
Similar Species:
From other species of Plagiothecium, the strongly unĀ­dulate, pale yellow-green to whitish-green, barely glossy leaves are usually enough to separate this species. See, however, notes under Neckera and Metaneckera and Plagiothecium denticulatum.


If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration SourceSome Common Mosses of BC

Habitat and Range

Rotten logs, humus and rocks in humid, shaded forest sites near the coast and mainly at lower elevations.
World Distribution

Widespread in Europe and western North America; in North America from southeastern Alaska to northern CaliĀ­fornia and eastward to Idaho.


Synonyms and Alternate Names:
Plagiothecium undulatum