CNPS

CNPS Rare Plant Inventory

Species Details

Chorizanthe orcuttiana

Orcutt's spineflower

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Classification

Scientific Name:
Chorizanthe orcuttiana Parry
Common Name:
Orcutt's spineflower
Family: Polygonaceae
Element Code: PDPGN040G0
USDA Plants Symbol: CHOR
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank: 1B.1
Fed List: FE (1996-10-07)
State List: CE (1979-11-01)
Global Rank: G1
State Rank:
 S1
Other Status: SB_CalBG/RSABG
CRPR Changes:
Add Date: 1980-01-01
Date Edited: 2021-11-05

Ecology and Life History

Lifeform: annual herb
Blooming Period: Mar-May
Elevation:
3 - 125 meters
10 - 410 feet
General Habitat:
  • Closed-cone coniferous forest
  • Chaparral (maritime)
  • Coastal scrub
General Micro Habitat:
Micro Habitat:
  • Openings
  • Sandy

Notes

Notes:
Most historical habitat urbanized. Threatened by foot traffic and non-native plants. See Phytologia 66(2):183 (1989) for taxonomic treatment.
Threats:
Taxonomy:
Other:

Occurrence Data from the CNDDB

Total Occurrences: 18
Element Occurrence Ranks:
A B C D X U
2 4 0 1 5 6
Occurrence Status:
Historical >20 Years 8
Recent <=20 Years 10
Presence:
Presumed Extant 13
Possibly Extirpated 5
Presumed Extirpated 0

Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
Del Mar (3211782), Encinitas (3311713), La Jolla (3211772)*, Point Loma (3211762), Rancho Santa Fe (3311712)*
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
Print this Map
Counties   Quads

Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2022. Rare Plant Inventory (online edition, v9-01 1.5). Website https://www.rareplants.cnps.org [accessed 5 July 2022].