Taxon Report

Calochortus monanthus Ownbey

single-flowered mariposa-lily

Print Report

Classification


Scientific Name:	Calochortus monanthus Ownbey
Common Name:	single-flowered mariposa-lily
Family:	Liliaceae
Element Code:	PMLIL0D0W0
USDA Plants Symbol:	CAMO2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial bulbiferous herb
Blooming Period: Jun	Jun
Elevation:	745-800 (2445-2625)
General Habitats:	Meadows and seeps
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1A
Global Rank:	GX
State Rank:	SX
State List:	None
Fed List:	None
Other Status:	BLM_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	1
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	1

Location


California Endemic: True
California Counties and Islands: Name (Code)
Siskiyou (SIS)*
Quads: Name (Quad Code)
Hawkinsville (4112275), Montague (4112265)?

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	1	100 %
Grazing	1	100%
Non-native plant impacts	1	100%

Notes



Known only from the type collection (in 1876) along the Shasta River, now mostly converted to agriculture. Rediscovery attempts unsuccessful. See Annals of the Missouri Botanical Garden 27:371-560 (1940) for original description.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 28 December 2024].