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Montana Field Guide

Montana Field Guides

Cultivated Rye - Secale cereale

Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

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

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General Description
Cool season, annual bunchgrass. Stems 50–150 cm. Leaves: blades flat and ascending, 6–12 mm wide; sheaths with overlapping margins; ligule membranous. Inflorescence a two-sided terminal spike with short internodes, 6–12 cm long, rachis readily disarticulating at maturity. Spikelets 1 per node, 14–18 mm long, mostly with 2 florets, glumes narrow and linear. Lemmas with distinctively scabrous veins, distinctly keeled, the margins conspicuously pectinate-ciliate, awn 20–40 mm long; palea enclosed in floret. Disarticulation below the glumes; unit of dispersal the spikelet and subtending internode of the inflorescence rachis (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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

Habitat
Occasionally planted or colonizing roadsides and fields (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:
Cultivated Rye — Secale cereale.  Montana Field Guide.  .  Retrieved on , from