CNPS Inventory Plant Detail

Glyceria grandis

Common Name:	American manna grass
Family:	Poaceae
Synonyms:
Element Code:	PMPOA2Y080
Full Name:	Glyceria grandis Wats.
USDA PLANTS Symbol:	GLGR

Biology
Lifeform: perennial rhizomatous herb Blooming Period: June - August Habitat: • Bogs and fens • Meadows and seeps • Marshes and swamps (streambanks and lake margins)

Rarity Status
CA Rare Plant Rank: 2.3 Rare, threatened, or endangered in California, but more common elsewhere .3: Not very endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2 S2: Imperiled. Global Rank: G5 G5: Secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 11
Element Occurrence Ranks:

A B C D X U

0 0 1 0 0 10

Population Status:

Historic >20 yrs	Recent <=20 yrs
9	2

Presence:

Present Extant	Possibly Extirpated	Extirpated
11	0	0

Notes
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1974-01-01 Last Update: 2011-12-14

Location

Elevation: 15 - 1980 meters

California Endemic: no

States: California, !AK, Arizona, Colorado, !CT, !DE, !IA, Idaho, !IL, !IN, !MA, !MD, !ME, !MI, !MN, !MS, !MT, !NC, !ND, !NE, !NH, !NJ, New Mexico, Nevada, !NY, !OH, Oregon, !PA, !RI, !SD, !TN, Utah, !VA, !VT, Washington, !WI, !WV, Wyoming

California Counties and Islands: name (code)
El Dorado (ELD), Fresno (FRE), Humboldt (HUM), Mendocino (MEN), Mono (MNO), Placer (PLA), Tulare (TUL)

Quads: name (DWR code) USGS code
Shadequarter Mtn. (354C) 36118E8, The Sphinx (374D) 36118G5, Verplank Ridge (376D) 36119G1, Big Alkali (470B) 38119B2, Bridgeport (487C) 38119C2, Coleville (505D) 38119E5, Emerald Bay (523A) 38120H1, Echo Lake (523D) 38120G1, Eureka Hill (537A) 38123H5, Point Arena (537B) 38123H6, Tahoe City (538B) 39120B2, Maple Creek (671D) 40123G7

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

872

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-120.0,38.75