Species Details

Harpagonella palmeri

Palmer's grapplinghook

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Classification

Scientific Name: Harpagonella palmeri Gray
Common Name: Palmer's grapplinghook
Family:	Boraginaceae
Element Code:	PDBOR0H010
USDA Plants Symbol:	HAPA7
Synonyms/Other Names: Pectocarya palmeri

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S3
Other Status:	SB_CalBG/RSABG; SB_CRES
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2024-08-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-May

Elevation:
20 - 955 meters
65 - 3135 feet

General Habitats:

Chaparral
Coastal scrub
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Clay
Openings

Notes

Notes: Inconspicuous and easily overlooked. Threatened by development, trampling, non-native plants, and agriculture.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	12
	Total EOs	% of EOs
EOs with Threat Listed:	41	72 %
Development	32	56%
Road/trail construction/maint.	8	14%
Agriculture	5	8%
Non-native plant impacts	4	7%
Grazing	3	5%
Recreational use (non-ORV)	3	5%
Mining	2	3%
ORV activity	2	3%
Foot traffic/trampling	2	3%
Disking	1	1%
Military operations	1	1%
Surface water diversion	1	1%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					57
A	B	C	D	X	U
5	11	5	1	5	30

Occurrence Status:
Historical >20 Years	57
Recent <=20 Years	0

Presence:
Presumed Extant	52
Possibly Extirpated	5
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Baja California (BA), California (CA)

California Counties and Islands: Name (Code)
Los Angeles (LAX), Orange (ORA), Riverside (RIV), San Diego (SDG)

Quads: Name (Quad Code)
Alberhill (3311764), Alpine (3211677), Bachelor Mtn. (3311751), Barrett Lake (3211666), Black Star Canyon (3311776), Bonsall (3311732), Canada Gobernadora (3311755), Dana Point (3311746), Del Mar (3211782), Dulzura (3211667), Earthquake Valley (3311614), El Cajon (3211678), El Cajon Mtn. (3211687), Encinitas (3311713), Imperial Beach (3211751), In-ko-pah Gorge (3211661), Jacumba (3211662), Jamul Mountains (3211668), La Jolla (3211772), La Mesa (3211771), Laguna Beach (3311757), Lake Elsinore (3311763), Lake Mathews (3311774), Las Pulgas Canyon (3311734), Margarita Peak (3311744), Mint Canyon (3411844), Morro Hill (3311733), Mt. Wilson (3411821), Murrieta (3311752), National City (3211761), Newhall (3411845), Oat Mountain (3411835), Otay Mesa (3211658), Pala (3311731), Pasadena (3411822), Pechanga (3311741), Potrero (3211655), Poway (3211781), Ramona (3311617), Ranchita (3311625), Rancho Santa Fe (3311712), Romoland (3311762), Sage (3311658), San Clemente (3311745), San Fernando (3411834), San Juan Capistrano (3311756), San Luis Rey (3311723), San Marcos (3311722), San Vicente Reservoir (3211688), Santa Catalina East (3311833), Santa Catalina North (3311844), Santa Catalina South (3311834), Santa Catalina West (3311845), Santa Susana (3411836), Steele Peak (3311773), Temecula (3311742), Vail Lake (3311648), Val Verde (3411846), Viejas Mountain (3211676), Warm Springs Mountain (3411855), Wildomar (3311753), Winchester (3311761)

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