• Webster's Revised Unabridged Dictionary
    • a Avenaceous Belonging to, or resembling, oats or the oat grasses.
    • ***
Century Dictionary and Cyclopedia
    • avenaceous Belonging to or resembling oats.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Avenaceous av′en-ā-shus of the nature of oats.
    • ***


Webster's Revised Unabridged Dictionary
L. avenaceus, fr. avena, oats
Chambers's Twentieth Century Dictionary
L. avena, oats.


In literature:

Associated Words: avenaceous, oaten.
"Putnam's Word Book" by Louis A. Flemming
I gathered a viviparous avenaceous grass (what this was cannot be ascertained).
"Lachesis Lapponica" by Carl von Linné