Species Details

Packera ganderi

Gander's ragwort

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Classification

Scientific Name: Packera ganderi (T.M. Barkley & R.M. Beauch.) W.A. Weber & A. Love
Common Name: Gander's ragwort
Family:	Asteraceae
Element Code:	PDAST8H1F0
USDA Plants Symbol:	PAGA5
Synonyms/Other Names: Senecio ganderi T.M. Barkley & R.M. Beauch.

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	CR (1982-07-01)
Global Rank:	G2
State Rank:	S2
Other Status:	BLM_S; SB_CalBG/RSABG; SB_CRES; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Apr-Jun

Elevation:
400 - 1200 meters
1310 - 3935 feet

General Habitats:

Chaparral (burned areas, gabbroic outcrops)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known from fewer than twenty occurrences. Threatened by recreational activities, vehicles and trampling. See Senecio ganderi in The Jepson Manual (1993). See Brittonia 26:106-108 (1974) for original description. See Phytologia 49(1): 44-50 (1981) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	10
	Total EOs	% of EOs
EOs with Threat Listed:	10	71 %
Development	4	28%
Foot traffic/trampling	4	28%
Road/trail construction/maint.	4	28%
ORV activity	3	21%
Other	1	7%
Over-collecting/poaching	1	7%
Recreational use (non-ORV)	1	7%
Mining	1	7%
Erosion/runoff	1	7%
Agriculture	1	7%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					14
A	B	C	D	X	U
5	3	0	1	1	4

Occurrence Status:
Historical >20 Years	7
Recent <=20 Years	7

Presence:
Presumed Extant	13
Possibly Extirpated	1
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Riverside (RIV), San Diego (SDG)

Quads: Name (Quad Code)
Alpine (3211677), Barrett Lake (3211666), Dulzura (3211667), El Cajon Mtn. (3211687), Mesa Grande (3311627), Pechanga (3311741), San Vicente Reservoir (3211688), Tecate (3211656)

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