Taxon Details

Clarkia lingulata

Merced clarkia

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Taxon Summary:

Clarkia lingulata, commonly known as Merced clarkia, is a annual herb in the Onagraceae that is found only in California. It occurs within Chaparral, and Cismontane woodland, growing at elevations from 400 to 455 meters. Clarkia lingulata is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Clarkia lingulata Lewis & Lewis
Common Name: Merced clarkia
Family:	Onagraceae
Element Code:	PDONA050P0
USDA Plants Symbol:	CLLI
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	CE (1987-01-01)
Global Rank:	G1
State Rank:	S1
Other Status:	SB_CalBG/RSABG; SB_UCBG; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb

Blooming Period: May-Jun

Elevation:
400 - 455 meters
1310 - 1495 feet

General Habitats:

Chaparral
Cismontane woodland

Microhabitat Details:

Microhabitat:

Notes

Notes: Known from only two occurrences along the Merced River. Largest occurrence damaged by herbicide spraying in 1984; also possibly threatened by road widening. Multiagency conservation agreement signed in 1994. See Madroño 12(2):35 (1953) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	2	100 %
Biocides	2	100%
Erosion/runoff	2	100%
Non-native plant impacts	2	100%
Road/trail construction/maint.	2	100%
Grazing	1	50%

Occurrence Data from the CNDDB

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

Occurrence Status:
Historical >20 Years	1
Recent <=20 Years	1

Presence:
Presumed Extant	2
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Mariposa (MPA)

Quads: Name (Quad Code)
Kinsley (3711968)

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