Species Details

Navarretia prostrata

prostrate vernal pool navarretia

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Scientific Name:
Navarretia prostrata (Gray) Greene
Common Name:
prostrate vernal pool navarretia
Family: Polemoniaceae
Element Code: PDPLM0C0Q0
USDA Plants Symbol: NAPR2
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2
State Rank:
Other Status:
CRPR Changes:
changed from 1B.1 to 1B.2 on 2019-08-27
Add Date: 2001-01-01
Date Edited: 2022-06-08
Lifeform: annual herb
Blooming Period: Apr-Jul
3 - 1210 meters
10 - 3970 feet
General Habitats:
  • Coastal scrub
  • Meadows and seeps
  • Valley and foothill grassland (alkaline)
  • Vernal pools
Microhabitat Details:
  • Mesic
Threatened by development, vehicles, road maintenance, grazing, non-native plants, and feral pigs. See Proceedings of the American Academy of Arts and Sciences 17:223 (1881) for original description, and Pittonia 1:130 (1887) for revised nomenclature.
Threat List Total: 16
Total EOs % of EOs
EOs with Threat Listed: 45 74 %
Non-native plant impacts 25 40%
Grazing 24 39%
Road/trail construction/maint. 16 26%
Feral pigs 10 16%
Development 9 14%
Total Occurrences: 61
Element Occurrence Ranks:
3 9 2 0 9 38
Occurrence Status:
Historical >20 Years 47
Recent <=20 Years 14
Presumed Extant 52
Possibly Extirpated 6
Presumed Extirpated 3
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Alameda (ALA), Fresno (FRE), Los Angeles (LAX), Merced (MER), Monterey (MNT), Orange (ORA), Riverside (RIV), San Benito (SBT), San Bernardino (SBD)(?), San Diego (SDG), San Luis Obispo (SLO)
Quads: Name (Quad Code)
Arena (3712036), Bradley (3512077), Bryson (3512171), Guasti (3411715)(?), Gustine (3712038), Hames Valley (3512088), Hepsedam Peak (3612037), Hernandez Reservoir (3612047), Hollywood (3411813), Idria (3612046), Inglewood (3311883), Joaquin Rocks (3612034), Jolon (3512182), La Jolla (3211772), La Mesa (3211771), Laguna Beach (3311757), Livermore (3712167), Long Beach (3311872), Los Angeles (3411812)(?), Los Banos (3712017), Milpitas (3712148), Murrieta (3311752), National City (3211761), Newport Beach (3311768), Ontario (3411716)(?), Rock Spring Peak (3612048), San Clemente (3311745), San Felipe (3612184), San Luis Ranch (3712027), Santa Rita Peak (3612035), South Gate (3311882), Stevinson (3712037), Tierra Redonda Mountain (3512078), Torrance (3311873), Turner Ranch (3712026), Venice (3311884), Whittier (3311881), Wildomar (3311753), Williams Hill (3512181)
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.
Presumed Extant
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