great bulrush


Definition of great bulrush

: any of several large plants of the genus Scirpus: such as
a : a tall Eurasian sedge (S. lacustris) with naked terete stems and a compound umbel of numerous capitate spikes
b : a bulrush (S. validus) of tropical America and southern U.S. with a stout scaly reddish rhizome, thick pliable culm, and spikelets in close fascicles or glomerules also : a bulrush chiefly of northern North America that is a variety (S. validus creber) of the above distinguished especially by lax panicles

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Learn More about great bulrush

Statistics for great bulrush

Cite this Entry

“Great bulrush.” Dictionary, Merriam-Webster, Accessed 24 Sep. 2020.

Comments on great bulrush

What made you want to look up great bulrush? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Homophone Quiz

  • three bears two of them look like theyre whispering to a third bear who looks chuffed to be the center of attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!