Taxon Details

Rosa gymnocarpa var. serpentina

Gasquet rose

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Photo of Rosa gymnocarpa var. serpentina

Dean Wm. Taylor, 2020

Taxon Summary:

Rosa gymnocarpa var. serpentina, commonly known as Gasquet rose, is a perennial rhizomatous shrub in the Rosaceae that is found in California and elsewhere. It occurs within Chaparral, and Cismontane woodland, growing at elevations from 400 to 1725 meters. Rosa gymnocarpa var. serpentina is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification

Scientific Name: Rosa gymnocarpa Nutt. var. serpentina Ertter & W.H. Lewis
Common Name: Gasquet rose
Family:	Rosaceae
Element Code:	PDROS1J1V1
USDA Plants Symbol:	ROGYS
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	None
State List:	None
Global Rank:	G5T3T4
State Rank:	S2
Other Status:	SB_BerrySB; SB_CalBG/RSABG
CRPR Changes: added to 1B.3 on 2011-11-30
Add Date:	2011-11-30
Date Edited:	2022-08-02

Ecology and Life History

Lifeform: perennial rhizomatous shrub

Blooming Period: Apr-Jun(Aug)

Elevation:
400 - 1725 meters
1310 - 5660 feet

General Habitats:

Chaparral
Cismontane woodland

Microhabitat Details: sometimes ridges

Microhabitat:

Openings
Roadsides (often)
Serpentine
Streambanks

Notes

Notes: Known only from the Siskiyou Mtns. Of CA and OR. Identification of specimen from SIS Co. needs verification; field surveys needed. Similar to R. spithamea. Not in TJM (1993).
Threats: Possibly threatened by foot traffic and vehicles.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					7
A	B	C	D	X	U
0	0	0	0	0	7

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	3

Presence:
Presumed Extant	7
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Siskiyou (SIS)?

Quads: Name (Quad Code)
City of Mount Shasta (4112233), Gasquet (4112378), Grouse Mtn. (4012376), Hurdygurdy Butte (4112377), Preston Peak (4112375)?, Willow Creek (4012386)

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 Status Review:	Proposed New Add to Rank 1B.3, G5T2T3 / S2
Original Description:	Madroño 55(2):170-177 (2008)
Species Account:	Rosa gymnocarpa var. serpentina profile for potential Species of Conservation Concern evaluation (2022)
Other:	USFS Potential Species of Conservation Concern Profile

CNPS Rare Plant Inventory