E-Flora BC: Electronic Atlas of the Flora of British Columbia

Plagiothecium undulatum (Hedw.) B.S.G.
flat-moss (undulate plagiothecium moss)
Plagiotheciaceae

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

Introduction to the Bryophytes of BC

© Gwen L'Hirondelle  Email the photographer   (Photo ID #73128)

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Distribution of Plagiothecium undulatum
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Species Information

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Illustration Source: Some Common Mosses of BC

Species description:
Species name describing the undulations of the leaves.
Reproduction:
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.
Habit:
Forming pale, yellow-green to whitish-green mats of undulate leafed shoots.
Similar Species:
From other species of Plagiothecium, the strongly un­dulate, 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.

Habitat / Range

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

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

Synonyms and Alternate Names

Plagiothecium undulatum var. myurum Cardot & Thér.

Taxonomic and Nomenclatural Links

Additional Range and Status Information Links

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General References