CNPS

CNPS Rare Plant Inventory



Taxon Details

Ipomopsis tenuifolia

slender-leaved ipomopsis

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Photo of Ipomopsis tenuifolia
© 2018 Richard Spellenberg 		Photo of Ipomopsis tenuifolia
© 2018 Richard Spellenberg 		Photo of Ipomopsis tenuifolia
© 2018 Richard Spellenberg

Taxon Summary:

Ipomopsis tenuifolia, commonly known as slender-leaved ipomopsis, is a perennial herb in the Polemoniaceae that is found in California and elsewhere. It occurs within Chaparral, Pinyon and juniper woodland, and Sonoran desert scrub, growing at elevations from 100 to 1200 meters. Ipomopsis tenuifolia is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

  Classification

Scientific Name:
Ipomopsis tenuifolia (Gray) V. Grant
Common Name:
slender-leaved ipomopsis
Family: Polemoniaceae
Element Code: PDPLM060J0
USDA Plants Symbol: IPTE3
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos

  Conservation Status

CA Rare Plant Rank: 2B.3
Fed List: None
State List: None
Global Rank: G4
State Rank:
 S2
Other Status: SB_CalBG/RSABG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-01-05

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: Mar-May
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Elevation:
100 - 1200 meters
330 - 3935 feet
General Habitats:
  • Chaparral
  • Pinyon and juniper woodland
  • Sonoran desert scrub
Microhabitat Details:
Microhabitat:
  • Gravelly (sometimes)
  • Rocky (sometimes)

  Notes

Notes:
See Proc. Amer. Acad. 11: 86 (1876) for original description and El Aliso 3(3): 357 (1956) for revised nomenclature.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 4
Total EOs % of EOs
EOs with Threat Listed: 5 29 %
THREAT LIST:
Non-native plant impacts 3 17%
ORV activity 3 17%
Vandalism/dumping/litter 2 11%
Foot traffic/trampling 2 11%

  Occurrence Data from the CNDDB

Total Occurrences: 17
Element Occurrence Ranks:
A B C D X U
0 3 1 0 0 13
Occurrence Status:
Historical >20 Years 10
Recent <=20 Years 7
Presence:
Presumed Extant 17
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
Baja California (BA), California (CA)
California Counties and Islands: Name (Code)
Imperial (IMP), San Diego (SDG)
Quads: Name (Quad Code)
In-ko-pah Gorge (3211661), Jacumba (3211662)
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
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

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Suggested Citation:
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 February 2025].
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