Species Details

Cirsium scariosum var. loncholepis

La Graciosa thistle

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Scientific Name:
Cirsium scariosum Nutt. var. loncholepis (Petr.) D.J. Keil
Common Name:
La Graciosa thistle
Family: Asteraceae
Element Code: PDAST2E1N0
USDA Plants Symbol:
Synonyms/Other Names:
CA Rare Plant Rank: 1B.1
Fed List: FE (2000-03-20)
State List: CT (1990-02-01)
Global Rank: G5T1
State Rank:
S1
Other Status: SB_CalBG/RSABG; SB_SBBG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-06-08
Lifeform: perennial herb
Blooming Period: May-Aug
JFMAMJJASOND
Elevation:
4 - 220 meters
15 - 720 feet
General Habitats:
  • Cismontane woodland
  • Coastal dunes
  • Coastal scrub
  • Marshes and swamps (brackish)
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Mesic
  • Sandy
Notes:
Threats:

Threatened by development, vehicles, groundwater pumping, and non-native plants. Possibly threatened by grazing.

Taxonomy:
Threat List Total: 14
Total EOs % of EOs
EOs with Threat Listed: 21 91 %
THREAT LIST:
Other 14 60%
Altered flood/tidal/hydrologic regime 8 34%
Non-native plant impacts 7 30%
Feral pigs 6 26%
Grazing 6 26%
Total Occurrences: 23
Element Occurrence Ranks:
A B C D X U
0 3 3 1 14 2
Occurrence Status:
Historical >20 Years 14
Recent <=20 Years 9
Presence:
Presumed Extant 9
Possibly Extirpated 12
Presumed Extirpated 2
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Luis Obispo (SLO), Santa Barbara (SBA)
Quads: Name (Quad Code)
Guadalupe (3412085), Los Alamos (3412063), Oceano (3512015), Orcutt (3412074)*, Point Sal (3412086), Sisquoc (3412073), Surf (3412065)*
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.
Presumed Extant
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