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Montana Field Guide

Montana Field Guides

Ventenata - Ventenata dubia
Other Names:  North Africa Grass, Wiregrass

Non-native Species

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 0

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General Description
Cool season, annual bunchgrass. Stems few-bunched, 50–70 cm. Leaves: blades 1–3 mm broad, inrolled and ascending; sheaths with overlapping margins; ligule membranous. Inflorescence an open panicle, 2–4 dm long, only the very distal branch ends bearing spikelets. Spikelets 6–10 mm long, mostly with 3 florets, callus of spikelet well developed, glumes distinctly ribbed or veined, enveloping the florets. Lemmas dimorphic; the lowermost staminate and persistent straight awn; the upper lemmas fertile and with a bent and twisted awn, readily disarticulating; callus bearded; palea well developed. Disarticulation above and below glumes; unit of dispersal the floret (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Introduced and of sporadic or ephemeral occurrence in the Pacific Northwest region and also in east central North America (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 7

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Sporadic in MT along roadsides and pastures and range with a significant disturbance history (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Management

References
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Citation for data on this website:
Ventenata — Ventenata dubia.  Montana Field Guide.  .  Retrieved on , from