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

Brachypodium sylvaticum (Huds.) P. Beauv. subsp. sylvaticum
slender false brome
Poaceae (Grass family)

Introduction to Vascular Plants
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Distribution of Brachypodium sylvaticum subsp. sylvaticum
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Introduction

This introduced and highly invasive grass species is reported in North America from Oregon. It was reported for British Columbia in 2008 by Jamie Fenneman, who found it growing along roadside and forest edges in the Cowichan Lake area, where the population is reported as extensive and extending for several kilometres west of Youbou (Fenneman 2010).

Fenneman describes the species as follows: "This is a large and relatively distinctive grass, and is unlike any other native or naturalized grass in British Columbia. It is a perennial and loosely cespitose species, with erect or ascending culms reaching a height of 120 cm or more. The nodes are pubescent (the best identification character of sterile plants!), and the broad (5-12 mm), flat, lax leaves are sparsely pilose on both surfaces. The racemes are suberect to pendent, and contain 3-12 rather distant spikelets arising directly from the rachis on short (<2 mm) pedicels. The spikelets are large (2-3 cm in total length), terete, and contain 6-16 (rarely more) florets. The glumes are unequal, acute, and usually pubescent, with the lower glumes 6-9 mm long and the upper glumes 8-11 mm long. The lemmas are 6-12 mm in length, lanceolate, and sparsely hairy on the backs, with straight or weakly flexuous awns 7-15 mm in length." (Fenneman 2010).

Taxonomic and Nomenclatural Links

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Species References

Fenneman, Jamie. 2010. Brachypodium sylvaticum in British Columbia. Botanical Electronic News #425, April 14 2010.

General References