Glyceria grandis, a monocot, is a perennial grass (rhizomatous) that is native to California, and is also found elsewhere in North America and beyond, (questionable).
California Rare Plant Rank:
(rare, threatened, or endangered in CA; common elsewhere).
0000 0000 0704 0252:!0000 0000 0704 0251:!
2004 Dean Wm. Taylor:!2004 Dean Wm. Taylor:!
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals,
Consortium of California Herbaria.[web application]. 2021. Berkeley, California:The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: Feb 24, 2021).