CNPS Inventory Plant Detail

Ranunculus hydrocharoides

Common Name:	frog's-bit buttercup
Family:	Ranunculaceae
Synonyms:
Element Code:	PDRAN0L190
Full Name:	Ranunculus hydrocharoides Gray
USDA PLANTS Symbol:	RAHY

Biology
Lifeform: perennial herb Blooming Period: June - September Habitat: • Marshes and swamps (freshwater)

Rarity Status

CA Rare Plant Rank: 2.1
Rare, threatened, or endangered in California, but more common elsewhere
.1: Seriously endangered in California
Federal Listing Status:
Not Listed
State Listing Status:
Not Listed
State Rank: S1
S1: Critically Imperiled.
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: 4
Element Occurrence Ranks:

A B C D X U

0 0 0 1 1 2

Population Status:

Historic >20 yrs	Recent <=20 yrs
1	3

Presence:

Present Extant	Possibly Extirpated	Extirpated
3	1	0

Notes

Known in CA only from fewer than five occurrences. Threatened by hydrological alterations. See Memoirs of the American Academy of Arts and Sciences II 5:306 (1855) for original description, and Madroño 42(4):515-516 (1995) for occurrence information.
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: 2010-03-15

Location

Elevation: 1100 - 2700 meters

California Endemic: no

States: California, Arizona, Baja California, New Mexico, South America, Sonora

California Counties and Islands: name (code)
Inyo (INY), Mono (MNO)

Quads: name (DWR code) USGS code
Kearsarge Peak (373D)* 36118G3, Mt. Thompson (394A)? 37118B5, Bishop (413C) 37118C4, River Spring (451A) 37118H5, Lundy (470C) 38119A2

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

1413

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 .

-118.5,37.125