Species Details

Stylocline citroleum

oil neststraw

  Download Report   Calflora    eFlora    CCH    CalPhotos  
No Photo Available
Scientific Name:
Stylocline citroleum Morefield
Common Name:
oil neststraw
Family: Asteraceae
Element Code: PDAST8Y070
USDA Plants Symbol: STCI10
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Mar-Apr
JFMAMJJASOND
Elevation:
50 - 400 meters
165 - 1310 feet
General Habitats:
  • Chenopod scrub
  • Coastal scrub
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Clay
Notes:
Possibly threatened by energy development and urbanization. See MadroƱo 39(2):123 (1992) for original description and Fremontia 27(1):12-15 (1999) for species account.
Threats:
Taxonomy:
Threat List Total: 4
Total EOs % of EOs
EOs with Threat Listed: 79 94 %
THREAT LIST:
Mining 77 91%
Road/trail construction/maint. 3 3%
Other 2 2%
Altered flood/tidal/hydrologic regime 1 1%
Total Occurrences: 84
Element Occurrence Ranks:
A B C D X U
0 55 14 0 0 15
Occurrence Status:
Historical >20 Years 70
Recent <=20 Years 14
Presence:
Presumed Extant 84
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Kern (KRN), San Diego (SDG)*
Quads: Name (Quad Code)
East Elk Hills (3511934), La Jolla (3211772), La Mesa (3211771), Mouth of Kern (3511923), National City (3211761), Oil Center (3511848)*, Point Loma (3211762), Reward (3511936), Rio Bravo Ranch (3511847), Taft (3511924), Tupman (3511933), West Elk Hills (3511935)
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
Click on quad for name. Hold Shift Key to use mouse scroll wheel