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Montana Field Guide

Montana Field Guides

Orchard Grass - Dactylis glomerata

Exotic Species (not native to Montana)

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, perennial bunchgrass, commonly forms tussocks. Stems 80–200 cm. Leaves: blades flat and lax to ascending, 4–8 mm wide; ligules membranous, 3–9 mm long; sheaths with overlapping margins and dorsally keeled. Inflorescence a contracted secund panicle 4–20 cm long. Spikelets 5–8 mm long with 3 to 6 florets. Lemmas 4–6 mm long, keeled and inconspicuously veined, awnless or awn-tipped; palea enclosed in lemma. Disarticulation above glumes; unit of dispersal the floret (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
Introduced throughout most of N. America (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 25

(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
Open meadows and open understory where moderately disturbed, including road and trailsides, as well as in lawns (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Orchard Grass — Dactylis glomerata.  Montana Field Guide.  .  Retrieved on , from