Taxon Report

Navarretia peninsularis Greene

Baja navarretia

Print Report

Taxon Summary

Navarretia peninsularis, commonly known as Baja navarretia, is a annual herb in the Polemoniaceae that is found in California and elsewhere. It occurs within Chaparral (openings), Lower montane coniferous forest, Meadows and seeps, and Pinyon and juniper woodland, growing at elevations from 1500 to 2300 meters. Navarretia peninsularis is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Navarretia peninsularis Greene
Common Name:	Baja navarretia
Family:	Polemoniaceae
Element Code:	PDPLM0C0L0
USDA Plants Symbol:	NAPE
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: (May)Jun-Aug	(May)Jun-Aug
Elevation:	1500-2300 (4920-7545)
General Habitats:	Chaparral, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland
Microhabitat:	Mesic
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G3
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	35
Element Occurrence Ranks:
Excellent (A)	4
Good (B)	8
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	23

Location


California Endemic: False
California Counties and Islands: Name (Code)
Kern (KRN), Los Angeles (LAX), San Bernardino (SBD), San Diego (SDG), Ventura (VEN)
Quads: Name (Quad Code)
Big Bear City (3411637), Big Bear Lake (3411628), Breckenridge Mtn. (3511845), Butler Peak (3411731), Cuddy Valley (3411971), Cummings Mtn. (3511815), Cuyamaca Peak (3211685), Fawnskin (3411638), Frazier Mtn. (3411878), Lebec (3411877), Lockwood Valley (3411961), Matilija (3411943), Mesa Grande (3311627), Moonridge (3411627), Sawmill Mountain (3411972), Tehachapi South (3511814)

Threat List Data from the CNDDB


Threat List Total:	10
EOs with Threat Listed:	Total EOs	% of EOs
	9	26 %
Recreational use (non-ORV)	3	8%
Road/trail construction/maint.	2	5%
Mining	2	5%
ORV activity	2	5%
Foot traffic/trampling	2	5%
Grazing	1	2%
Altered flood/tidal/hydrologic regime	1	2%
Development	1	2%
Feral pigs	1	2%
Wood cutting or brush clearing	1	2%

Notes



To be looked for in RIV Co. How common is plant in BA? Threatened in SBD Co. by gold-panning and vehicles. Similar to N. breweri. See Pittonia 1:136 (1887) 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 1 February 2025].