CNPS Inventory Plant Detail

Claytonia megarhiza

Common Name:	fell-fields claytonia
Family:	Montiaceae
Synonyms:	Claytonia bellidifolia
Element Code:	PDPOR030A0
Full Name:	Claytonia megarhiza (Gray) Wats.
USDA PLANTS Symbol:	CLME

Biology
Lifeform: perennial herb Blooming Period: July - September Habitat: In crevices between rocks. • Alpine boulder and rock field • Subalpine coniferous forest (rocky or gravelly)

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: S2S3
S2: Imperiled. S3: Vulnerable.
Global Rank: G4G5
G4: Apparently secure, considering populations outside California. G5: Secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 14
Element Occurrence Ranks:

A B C D X U

1 1 0 1 0 11

Population Status:

Historic >20 yrs	Recent <=20 yrs
11	3

Presence:

Present Extant	Possibly Extirpated	Extirpated
14	0	0

Notes
Threatened by foot traffic. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1980-01-01 Last Update: 2011-11-22

Location

Elevation: 2600 - 3532 meters

California Endemic: no

States: California, Colorado, !MT, New Mexico, Oregon

California Counties and Islands: name (code)
Alpine (ALP), Fresno (FRE), Mono (MNO), Modoc (MOD), Mariposa (MPA), Nevada (NEV), Tuolumne (TUO)

Quads: name (DWR code) USGS code
Bloody Mtn. (434C) 37118E8, Mt. Ritter (435B) 37119F2, Mt. Lyell (436A) 37119F3, Tenaya Lake (454C) 37119G4, Vogelsang Peak (454D) 37119G3, Yosemite Falls (455D) 37119G5, Matterhorn Peak (471C) 38119A4, Piute Mtn. (472D) 38119A5, Ebbetts Pass (506D) 38119E7, Independence Lake (555A) 39120D3, Emerson Peak (673B) 41120B2, Eagle Peak (690C) 41120C2

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

496

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 .

-119.75,38.5