CNPS Inventory Plant Detail

Poa lettermanii

Common Name:	Letterman's blue grass
Family:	Poaceae
Synonyms:
Element Code:	PMPOA4Z1H0
Full Name:	Poa lettermanii Vasey
USDA PLANTS Symbol:	POLE3

Biology
Lifeform: perennial herb Blooming Period: July - August Habitat: • Alpine boulder and rock field (sandy or rocky)

Rarity Status
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: S3 S3: Vulnerable. Global Rank: G4 G4: Apparently 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 0 0 0 11

Population Status:

Historic >20 yrs	Recent <=20 yrs
9	2

Presence:

Present Extant	Possibly Extirpated	Extirpated
11	0	0

Notes
See Contributions from the U.S. National Herbarium 1:273 (1893) for original description, and Systematic Botany 16(3):522-523 (1991) for taxonomic treatment. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 2001-01-01 Last Update: 2012-05-04

Location

Elevation: 3500 - 4265 meters

California Endemic: no

States: California, Colorado, Idaho, !MT, Nevada, Oregon, Utah, Washington, Wyoming

California Counties and Islands: name (code)
Fresno (FRE), Inyo (INY), Mono (MNO), Tulare (TUL)

Quads: name (DWR code) USGS code
Cirque Peak (329B) 36118D2, Mt. Williamson (352A) 36118F3, Mount Whitney (352D) 36118E3, Aberdeen (373A) 36118H3, Kearsarge Peak (373D) 36118G3, Mt. Thompson (394A) 37118B5, Mt. Darwin (394B) 37118B6, North Palisade (394D) 37118A5, Mount Tom (414C) 37118C6, Mt. Hilgard (415D) 37118C7, Juniper Mtn. (431B) 37118F2, White Mtn. Peak (432A) 37118F3

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

2019

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

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society. Sacramento, CA. Accessed on .

-118.5,37.0