CNPS

CNPS Rare Plant Inventory

Species Details

Calochortus clavatus var. recurvifolius

Arroyo de la Cruz mariposa-lily

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  Classification

Scientific Name:
Calochortus clavatus Wats. var. recurvifolius (Hoov.) Fiedler & Zebell
Common Name:
Arroyo de la Cruz mariposa-lily
Family: Liliaceae
Element Code: PMLIL0D098
USDA Plants Symbol: CACLR3
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G4T1
State Rank:
 S1
Other Status:
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2021-07-14

  Ecology and Life History

Lifeform: perennial bulbiferous herb
Blooming Period: Jun-Jul
JFMAMJJASOND
Elevation:
10 - 120 meters
35 - 395 feet
General Habitats:
  • Coastal bluff scrub
  • Chaparral (maritime)
  • Coastal prairie
  • Lower montane coniferous forest
Microhabitat Details:
Microhabitat:

  Notes

Notes:
Known from fewer than ten occurrences. Threatened by grazing. See Leaflets of Western Botany 10(8):126 (1964) for original description, and Madroño 42(3):406 (1995) for revised nomenclature.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 2
Total EOs % of EOs
EOs with Threat Listed: 4 80 %
THREAT LIST:
Grazing 4 80%
Erosion/runoff 1 20%

  Occurrence Data from the CNDDB

Total Occurrences: 5
Element Occurrence Ranks:
A B C D X U
0 3 1 0 0 1
Occurrence Status:
Historical >20 Years 4
Recent <=20 Years 1
Presence:
Presumed Extant 5
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Luis Obispo (SLO)
Quads: Name (Quad Code)
Piedras Blancas (3512163)
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

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2023. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 27 September 2023].