Taxon Details

Physocarpus alternans

Nevada ninebark

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Taxon Summary:

Physocarpus alternans, commonly known as Nevada ninebark, is a perennial deciduous shrub in the Rosaceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland (carbonate, and rocky), growing at elevations from 1800 to 3100 meters. Physocarpus alternans is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Physocarpus alternans (Jones) J.T. Howell
Common Name: Nevada ninebark
Family:	Rosaceae
Element Code:	PDROS19010
USDA Plants Symbol:	PHAL7
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial deciduous shrub

Blooming Period: Jun-Jul

Elevation:
1800 - 3100 meters
5905 - 10170 feet

General Habitats:

Pinyon and juniper woodland (carbonate, rocky)

Microhabitat Details:

Microhabitat:

Notes

Notes: See Zoe 4:42 (1893) for original description, and Proceedings of the California Academy of Sciences IV 20:130 (1931) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	1	7 %
Non-native plant impacts	1	7%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					14
A	B	C	D	X	U
0	2	0	0	0	12

Occurrence Status:
Historical >20 Years	6
Recent <=20 Years	8

Presence:
Presumed Extant	14
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Nevada (NV), Utah (UT)

California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO)

Quads: Name (Quad Code)
Blanco Mtn. (3711842), Cowhorn Valley (3711821), Crooked Creek (3711841), Deep Springs Lake (3711831), Juniper Mtn. (3711862), Panamint (3611711), Telescope Peak (3611721), Tin Mountain (3611784), Uhlmeyer Spring (3711822), Westgard Pass (3711832), White Top Mtn. (3611774)

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

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CNPS Rare Plant Inventory