Taxon Details

Cirsium praeteriens

lost thistle

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Taxon Summary:

Cirsium praeteriens, commonly known as lost thistle, is a perennial herb in the Asteraceae that is found only in California. It occurs within , growing at elevations from 0 to 100 meters. Cirsium praeteriens is ranked 1A, Plants Presumed Extirpated in California and Either Rare or Extinct Elsewhere.

Classification

Scientific Name: Cirsium praeteriens J.F. Macbride
Common Name: lost thistle
Family:	Asteraceae
Element Code:	PDAST2E2B0
USDA Plants Symbol:	CIPR2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1A
Fed List:	None
State List:	None
Global Rank:	GX
State Rank:	SX
Other Status:
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Jul

Elevation:
0 - 100 meters
0 - 330 feet

General Habitats:

Microhabitat Details:

Microhabitat:

Notes

Notes: Known from only two collections from Palo Alto (last in 1901). Perhaps represents a casual introduction from the Old World. Not in The Jepson Manual. See Contributions from the Gray Herbarium 53:19 (1918) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					1
A	B	C	D	X	U
0	0	0	0	1	0

Occurrence Status:
Historical >20 Years	1
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	1

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
San Mateo (SMT), Santa Clara (SCL)*

Quads: Name (Quad Code)
Palo Alto (3712242)*

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