Species Details

Calochortus greenei

Greene's mariposa-lily

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Classification

Scientific Name: Calochortus greenei Wats.
Common Name: Greene's mariposa-lily
Family:	Liliaceae
Element Code:	PMLIL0D0H0
USDA Plants Symbol:	CAGR
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S2S3
Other Status:	BLM_S; SB_BerrySB; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2023-06-06

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: Jun-Aug

Elevation:
1035 - 1890 meters
3395 - 6200 feet

General Habitats:

Cismontane woodland
Meadows and seeps
Pinyon and juniper woodland
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Volcanic

Notes

Notes: Threatened by development, horticultural collecting, grazing, vehicles, and competition. Candidate for state listing in OR. See Proceedings of the American Academy of Arts and Sciences 14:264 (1879) for original description, and Proceedings of the California Academy of Sciences III 2:129 (1901) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	9
	Total EOs	% of EOs
EOs with Threat Listed:	37	74 %
Grazing	21	42%
Development	8	16%
Other	7	14%
Logging	7	14%
Non-native plant impacts	6	12%
ORV activity	4	8%
Road/trail construction/maint.	2	4%
Feral pigs	1	2%
Foot traffic/trampling	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					50
A	B	C	D	X	U
22	11	8	4	0	5

Occurrence Status:
Historical >20 Years	45
Recent <=20 Years	5

Presence:
Presumed Extant	50
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Siskiyou (SIS)

Quads: Name (Quad Code)
Mule Hill (4212212), Parker Mtn. (4212213), Bogus Mountain (4112274), Dewey Gulch (4112273), Hawkinsville (4112275), Hornbrook (4112285), Iron Gate Reservoir (4112284), Panther Rock (4112272), Secret Spring Mtn. (4112282), Solomons Temple (4112263)

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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Selected References

Other:

Calochortus greenei account for potential Species of Conservation Concern evaluation (2022)