CNPS

CNPS Rare Plant Inventory

Species Details

Calochortus raichei

Cedars fairy-lantern

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  Classification

Scientific Name:
Calochortus raichei Farwig & Girard
Common Name:
Cedars fairy-lantern
Family: Liliaceae
Element Code: PMLIL0D1L0
USDA Plants Symbol: CARA16
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2
State Rank:
 S2
Other Status: BLM_S; SB_UCSC
CRPR Changes:
Add Date: 1988-01-01
Date Edited: 2021-11-05

  Ecology and Life History

Lifeform: perennial bulbiferous herb
Blooming Period: May-Aug
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Elevation:
200 - 490 meters
655 - 1610 feet
General Habitats:
  • Closed-cone coniferous forest
  • Chaparral
Microhabitat Details:
Microhabitat:
  • Serpentine

  Notes

Notes:
Known only from The Cedars near Guerneville. Potentially threatened by mining and road construction. See Herbertia 43(1):2-9 (1987) for original description, and Fremontia 15(2):18 (1987) for species account.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 1
Total EOs % of EOs
EOs with Threat Listed: 4 44 %
THREAT LIST:
Road/trail construction/maint. 4 44%

  Occurrence Data from the CNDDB

Total Occurrences: 9
Element Occurrence Ranks:
A B C D X U
2 2 0 0 0 5
Occurrence Status:
Historical >20 Years 8
Recent <=20 Years 1
Presence:
Presumed Extant 9
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Sonoma (SON)
Quads: Name (Quad Code)
Cazadero (3812351), Fort Ross (3812352), Guerneville (3812258), Tombs Creek (3812362), Warm Springs Dam (3812361)
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. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 13 November 2024].