CNPS

CNPS Rare Plant Inventory

Species Details

Chorizanthe wheeleri

Wheeler's spineflower

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No Photo Available

  Classification

Scientific Name:
Chorizanthe wheeleri Wats.
Common Name:
Wheeler's spineflower
Family: Polygonaceae
Element Code: PDPGN040Y0
USDA Plants Symbol: CHWH2
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 4.3
Fed List: None
State List: None
Global Rank: G3G4
State Rank:
 S3S4
Other Status:
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2021-11-05

  Ecology and Life History

Lifeform: annual herb
Blooming Period: Apr-Jul
JFMAMJJASOND
Elevation:
5 - 600 meters
15 - 1970 feet
General Habitats:
  • Chaparral
  • Coastal scrub
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Gravelly (sometimes)
  • Rocky (sometimes)

  Notes

Notes:
Mainland occurrences are C. staticoides; a closely-related widespread taxon. See Proceedings of the American Academy of Arts and Sciences 12:272 (1877) for original description, and Phytologia 66(2):164-166 (1989) for taxonomic treatment.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 0
Total EOs % of EOs
EOs with Threat Listed: 0 0 %
THREAT LIST:

  Occurrence Data from the CNDDB

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

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Cruz Island D (3311984), Santa Rosa Island East (3311988), Santa Rosa Island North (3312081)
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 21 November 2024].