Taxon Report

Chorizanthe rectispina Goodm.

straight-awned spineflower

Print Report

© 1982 California Native Plant Society

Classification


Scientific Name:	Chorizanthe rectispina Goodm.
Common Name:	straight-awned spineflower
Family:	Polygonaceae
Element Code:	PDPGN040N0
USDA Plants Symbol:	CHRE
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Jul	Apr-Jul
Elevation:	85-1035 (280-3395)
General Habitats:	Chaparral, Cismontane woodland, Coastal scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	BLM_S; SB_SBBG; USFS_S
CRPR Changes:	changed from 1B.3 to 1B.2 on 2022-01-06

Occurrence Data from the CNDDB


Total Occurrences:	42
Element Occurrence Ranks:
Excellent (A)	3
Good (B)	13
Fair (C)	4
Poor (D)	0
None (X)	1
Unknown (U)	21

Location


California Endemic: True
California Counties and Islands: Name (Code)
Monterey (MNT), San Luis Obispo (SLO)
Quads: Name (Quad Code)
Atascadero (3512046), Bradley (3512077), Branch Mtn. (3512021)?, Camatta Ranch (3512043), Hames Valley (3512088), Lopez Mtn. (3512035), San Miguel (3512076), Santa Margarita (3512045), Tierra Redonda Mountain (3512078), Williams Hill (3512181), York Mountain (3512057)

Threat List Data from the CNDDB


Threat List Total:	13
EOs with Threat Listed:	Total EOs	% of EOs
	28	67 %
Development	15	35%
Other	11	26%
Mining	6	14%
Non-native plant impacts	4	9%
Road/trail construction/maint.	3	7%
ORV activity	2	4%
Agriculture	2	4%
Biocides	1	2%
Disking	1	2%
Grazing	1	2%
Improper burning regime	1	2%
Military operations	1	2%
Wood cutting or brush clearing	1	2%

Notes



Possibly threatened by development and non-native plants. See Annals of the Missouri Botanical Garden 21:72 (1934) for original description, and Phytologia 66(2):143 (1989) for taxonomic treatment.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].