Taxon Details

Linanthus orcuttii

Orcutt's linanthus

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Taxon Summary:

Linanthus orcuttii, commonly known as Orcutt's linanthus, is a annual herb in the Polemoniaceae that is found in California and elsewhere. It occurs within Chaparral, Lower montane coniferous forest, and Pinyon and juniper woodland, growing at elevations from 915 to 2145 meters. Linanthus orcuttii is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification

Scientific Name: Linanthus orcuttii (Parry & Gray) Jeps.
Common Name: Orcutt's linanthus
Family:	Polemoniaceae
Element Code:	PDPLM090X0
USDA Plants Symbol:	LIOR
Synonyms/Other Names: Linanthus orcuttii ssp. pacificus
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S2
Other Status:	BLM_S; SB_CalBG/RSABG; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2024-11-05

Ecology and Life History

Lifeform: annual herb

Blooming Period: May-Jun

Elevation:
915 - 2145 meters
3000 - 7040 feet

General Habitats:

Chaparral
Lower montane coniferous forest
Pinyon and juniper woodland

Microhabitat Details:

Microhabitat:

Openings

Notes

Notes: Threatened by foot traffic and recreational activities. See Madroño 24(3):150-151 (1977) for taxonomic treatment and 43(4):528 (1996) for first SBD Co. records.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	9	27 %
Recreational use (non-ORV)	7	21%
Road/trail construction/maint.	3	9%
Logging	3	9%
Grazing	2	6%
Erosion/runoff	1	3%
Foot traffic/trampling	1	3%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					33
A	B	C	D	X	U
3	1	2	0	0	27

Occurrence Status:
Historical >20 Years	23
Recent <=20 Years	10

Presence:
Presumed Extant	33
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

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

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

Quads: Name (Quad Code)
Aguanga (3311647), Beauty Mountain (3311646), Boucher Hill (3311638), Cuyamaca Peak (3211685), Descanso (3211675), Hot Springs Mtn. (3311635), Monument Peak (3211684), Mount Laguna (3211674), Palomar Observatory (3311637), Vail Lake (3311648), Warner Springs (3311636)

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