Definition of squirreltail
1 : a tufted perennial grass (Sitanion hystrix) that has very bristly spikes disarticulating above each node and resembles lyme grass
2 less commonly squirreltail grass or squirreltail barley : any of several grasses of the genus Hordeum (such as wall barley) with bushy spikes
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Origin and Etymology of squirreltail
1squirrel + tail
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