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"A grass of the same genus with the valuable Ryegrass, an annual, common in the cornfields in England and many parts of Europe. It has no tufts of leaves from the rot, the glumes are as long as the spikelets, or longer, the spikelets contain 5-7 florets which are awned." — Chambers' Encyclopedia, 1875

Darnel

"A grass of the same genus with the valuable Ryegrass, an annual, common in the cornfields in England…

<i>Lolium perenne</i>. A sheath, in botany is "the part of an expanded organ that is rolled around a stem or other body, forming a tube, as in the lower part of the leaves of grasses..." &mdash;Whitney, 1889 <p>This illustration show a single leaf of ryegrass in its sheath.

Ryegrass Leaf with Sheath

Lolium perenne. A sheath, in botany is "the part of an expanded organ that is rolled around a stem or…