Taxon Report

Triteleia clementina Hoov.

San Clemente Island triteleia

Print Report

Taxon Summary

Triteleia clementina, commonly known as San Clemente Island triteleia, is a perennial bulbiferous herb in the Themidaceae that is found only in California. It occurs within Valley and foothill grassland, growing at elevations from 100 to 445 meters. Triteleia clementina is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Triteleia clementina Hoov.
Common Name:	San Clemente Island triteleia
Family:	Themidaceae
Element Code:	PMLIL21020
USDA Plants Symbol:	TRCL
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial bulbiferous herb
Blooming Period: Mar-Apr	Mar-Apr
Elevation:	100-445 (330-1460)
General Habitats:	Valley and foothill grassland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; SB_CRES
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	26
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	26

Location


California Endemic: True
California Counties and Islands: Name (Code)
Los Angeles (LAX)
Quads: Name (Quad Code)
San Clemente Island Central (3211874), San Clemente Island South (3211873)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	%

Notes



Known from fewer than twenty occurrences. Feral herbivores removed from SCM Isl., and vegetation recovering. See The American Midland Naturalist 25(1): 82 (1941) for original description.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 6 November 2025].