Taxon Report

Chorizanthe wheeleri Wats.

Wheeler's spineflower

Print Report

Classification


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

Ecology and Life History


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

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G3G4
State Rank:	S3S4
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
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)

Threat List Data from the CNDDB


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

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:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 1 January 2025].