Species Details

Ivesia unguiculata

Yosemite ivesia

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Classification

Scientific Name: Ivesia unguiculata Gray
Common Name: Yosemite ivesia
Family:	Rosaceae
Element Code:	PDROS0X0N0
USDA Plants Symbol:	IVUN
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-01-05

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Sep

Elevation:
1500 - 2925 meters
4920 - 9595 feet

General Habitats:

Meadows and seeps
Subalpine coniferous forest
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by foot traffic, grazing, trampling, and vehicles.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	7
	Total EOs	% of EOs
EOs with Threat Listed:	13	50 %
Grazing	11	42%
Road/trail construction/maint.	3	11%
Other	2	7%
Recreational use (non-ORV)	1	3%
Logging	1	3%
ORV activity	1	3%
Development	1	3%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					26
A	B	C	D	X	U
6	2	3	1	2	12

Occurrence Status:
Historical >20 Years	26
Recent <=20 Years	0

Presence:
Presumed Extant	24
Possibly Extirpated	1
Presumed Extirpated	1

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Fresno (FRE), Madera (MAD), Mariposa (MPA), Mono (MNO), Tuolumne (TUO)

Quads: Name (Quad Code)
Balloon Dome (3711942), Cattle Mtn. (3711952), Courtright Reservoir (3711818), Dinkey Creek (3711912), Dogtooth Peak (3711921), El Capitan (3711966), Graveyard Peak (3711848), Half Dome (3711965), Hume (3611878), Huntington Lake (3711922), Kaiser Peak (3711932), Mariposa Grove (3711955), Mt. Givens (3711931), Musick Mtn. (3711923), Nelson Mtn. (3711911), Patterson Mtn. (3611981), Pickel Meadow (3811935), Rough Spur (3611888), Sharktooth Peak (3711941), Shaver Lake (3711913), Squaw Dome (3711943), Tenaya Lake (3711974), Timber Knob (3711953), Tower Peak (3811925), Ward Mountain (3711828)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory