https://www.merriam-webster.com/dictionary/silver%20beard%20grass
SILVER BEARD GRASS Definition & Meaning - Merriam-Webster
The meaning of SILVER BEARD GRASS is a tropical American grass (Andropogon saccharoides) established in North America and having a dense panicle made up of...
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https://www.merriam-webster.com/dictionary/beard%20grass
BEARD GRASS Definition & Meaning - Merriam-Webster
The meaning of BEARD GRASS is a grass of the genus Polypogon (especially P. monspeliensis) with a densely bearded spike.
beard grassdefinitionmeaningmerriamwebster