Taxon Report

Systenotheca vortriedei (Bdg.) Rev. & Hardham

Vortriede's spineflower

Print Report

Classification


Scientific Name:	Systenotheca vortriedei (Bdg.) Rev. & Hardham
Common Name:	Vortriede's spineflower
Family:	Polygonaceae
Element Code:	PDPGN0W010
USDA Plants Symbol:	SYVO
Synonyms/Other Names:	Chorizanthe vortriedei Centrostegia vortriedei (Bdg.) Goodm.

Ecology and Life History


Lifeform:	annual herb
Blooming Period: May-Sep	May-Sep
Elevation:	500-1600 (1640-5250)
General Habitats:	Chaparral, Cismontane woodland
Microhabitat:	Sandy (sometimes), Serpentine (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_UCBG
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)
Monterey (MNT), San Luis Obispo (SLO)
Quads: Name (Quad Code)
Alder Peak (3512183), Burnett Peak (3512172), Burro Mountain (3512173), Cone Peak (3612114), Lopez Point (3612115), Pebblestone Shut-in (3512161), Tassajara Hot Springs (3612125)

Threat List Data from the CNDDB


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

Notes



See Great Basin Naturalist Memoirs 2:169-190 (1978) for taxonomic revision, and Phytologia 66(2):83-88 (1989) for revised nomenclature.
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 8 January 2025].