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Montana Field Guide

Montana Field Guides

Italian Ryegrass - Lolium multiflorum
Other Names:  Lolium perenne ssp. multiflorum

Exotic Species (not native to Montana)

Global Rank: GNRTNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

External Links






 
General Description
Biennial to short-lived perennial bunchgrass. Stems 20–150 cm, often single-stemmed in lawn settings. Leaves: blades 3–6 mm wide. Inflorescence 15–40 cm long. Spikelets 10–30 mm long, glumes about as long as an individual floret. Lemmas often 10 to 20 per spikelet, keeled, at least the upper ones with an awn 5–15 mm long (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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

Habitat
Regularly disturbed sites, roadsides, and newly planted 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:
Italian Ryegrass — Lolium multiflorum.  Montana Field Guide.  .  Retrieved on , from