Species Details

Helianthus nuttallii ssp. parishii

Los Angeles sunflower

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Scientific Name:
Helianthus nuttallii T. & G. ssp. parishii (Gray) Heiser
Common Name:
Los Angeles sunflower
Family: Asteraceae
Element Code: PDAST4N102
USDA Plants Symbol: HENUP
Synonyms/Other Names:
Lifeform: perennial rhizomatous herb
Blooming Period: Aug-Oct
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Elevation:
10 - 1525 meters
35 - 5005 feet
General Habitats:
  • Marshes and swamps (freshwater, coastal salt)
Microhabitat Details:
Microhabitat:
Notes:
Last seen in 1937. Extirpated by urbanization. See Proceedings of the American Academy of Arts and Sciences 14:7 (1883) for original description, and Memoirs of the Torrey Botanical Club 22(3):147-152 (1969) for taxonomic treatment.
Threats:
Taxonomy:
Threat List Total: 2
Total EOs % of EOs
EOs with Threat Listed: 5 71 %
THREAT LIST:
Development 5 71%
Altered flood/tidal/hydrologic regime 1 14%
Total Occurrences: 7
Element Occurrence Ranks:
A B C D X U
0 0 0 0 5 2
Occurrence Status:
Historical >20 Years 7
Recent <=20 Years 0
Presence:
Presumed Extant 2
Possibly Extirpated 2
Presumed Extirpated 3
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX)*, Orange (ORA)*, San Bernardino (SBD)*
Quads: Name (Quad Code)
Hollywood (3411813)*, Los Angeles (3411812)*, Newport Beach (3311768)*, Pasadena (3411822), San Bernardino South (3411713)*, Seal Beach (3311861), Telegraph Peak (3411735), Tustin (3311767)
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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