Species Details

Calochortus syntrophus

Callahan's mariposa-lily

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Classification

Scientific Name: Calochortus syntrophus Callahan
Common Name: Callahan's mariposa-lily
Family:	Liliaceae
Element Code:	PMLIL0D1S0
USDA Plants Symbol:	CASY7
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	SB_UCSC
CRPR Changes: changed from 3.1 to 1B.1 on 2009-04-17
Add Date:	2001-01-01
Date Edited:	2023-06-06

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: May-Jun

Elevation:
525 - 1145 meters
1725 - 3755 feet

General Habitats:

Cismontane woodland
Valley and foothill grassland (vernally mesic)

Microhabitat Details:

Microhabitat:

Notes

Notes:
Threats: Threatened by horticultural collecting.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	3
	Total EOs	% of EOs
EOs with Threat Listed:	6	43 %
Logging	4	28%
Recreational use (non-ORV)	1	7%
Road/trail construction/maint.	1	7%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					14
A	B	C	D	X	U
0	6	1	0	0	7

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	14

Presence:
Presumed Extant	14
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Butte (BUT), Shasta (SHA), Tehama (TEH)

Quads: Name (Quad Code)
Barkley Mtn. (4012126), Cohasset (3912186), Devils Parade Ground (4012116), Dewitt Peak (4012128), Finley Butte (4012137), Lyonsville (4012136), Roaring Creek (4012188), Whitmore (4012168)

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

Selected References

CNPS Status Review:	Proposed List Change from 3.1 to 1B.1
Original Description:	Herbertia 49:20 (1993)
Species Account:	Calochortus syntrophus profile for potential Species of Conservation Concern evaluation (2021)