CNPS Inventory Plant Detail

Ivesia aperta var. aperta

Common Name:	Sierra Valley ivesia
Family:	Rosaceae
Synonyms:
Element Code:	PDROS0X011
Full Name:	Ivesia aperta (J.T. Howell) Munz var. aperta
USDA PLANTS Symbol:	IVAPA

Biology
Lifeform: perennial herb Blooming Period: June - September Habitat: vernally mesic, usually volcanic. • Great Basin scrub • Lower montane coniferous forest • Meadows and seeps • Pinyon and juniper woodland • Vernal pools

Rarity Status
Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G2T2 T2: Imperiled. G2: (species) Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 49
Element Occurrence Ranks:

A B C D X U

8 13 13 2 1 12

Population Status:

Historic >20 yrs	Recent <=20 yrs
26	23

Presence:

Present Extant	Possibly Extirpated	Extirpated
48	1	0

Notes

Threatened by residential development, agriculture, grazing, and vehicles. Potentially threatened by hydrological alterations and fire suppression. Interim management guide prepared by USFS in 1992. Threatened in NV. See Leaflets of Western Botany 9(15):239 (1962) for original description, and Brittonia 40(4):398-399 (1988) for revised nomenclature.
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: 2010-08-17

Location

Elevation: 1480 - 2300 meters

California Endemic: no

States: California, Nevada

California Counties and Islands: name (code)
Lassen (LAS), Plumas (PLU), Sierra (SIE)

Quads: name (DWR code) USGS code
Evans Canyon (570A) 39120F1, Loyalton (570B) 39120F2, Sardine Peak (570C) 39120E2, Antelope Valley (571A) 39120F3, Calpine (571B)* 39120F4, Sierraville (571D) 39120E3, Frenchman Lake (586B) 39120H2, Chilcoot (586C) 39120G2, Portola (587C) 39120G4, Reconnaissance Peak (587D) 39120G3, McKesick Peak (602C) 40120A2, Ferris Creek (603D) 40120A3

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

635

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 .

-120.25,39.75