Species Details

Chorizanthe rectispina

straight-awned spineflower

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Classification

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

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	BLM_S; SB_SBBG; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: Apr-Jul

Elevation:
85 - 1035 meters
280 - 3395 feet

General Habitats:

Chaparral
Cismontane woodland
Coastal scrub

Microhabitat Details:

Microhabitat:

Notes

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:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	13
	Total EOs	% of EOs
EOs with Threat Listed:	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%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					42
A	B	C	D	X	U
3	13	4	0	1	21

Occurrence Status:
Historical >20 Years	25
Recent <=20 Years	17

Presence:
Presumed Extant	41
Possibly Extirpated	1
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

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)

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

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CNPS Rare Plant Inventory