Species Details

Helianthus niveus ssp. tephrodes

Algodones Dunes sunflower

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Scientific Name:
Helianthus niveus (Benth.) Bdg. ssp. tephrodes (Gray) Heiser
Common Name:
Algodones Dunes sunflower
Family: Asteraceae
Element Code: PDAST4N0Z2
USDA Plants Symbol: HENIT
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Sep-May
Elevation:
50 - 100 meters
165 - 330 feet
General Habitat:
  • Desert dunes
General Micro Habitat:
Micro Habitat:
Notes:
Threatened by vehicles. See Report on the U.S. and Mexican Boundary Survey, p. 90 (1859) by W. Emory for original description, and Memoirs of the Torrey Botanical Club 22(3):39-43 (1969) for revised nomenclature.
Threats:
Taxonomy:
Other:
References:
Total Occurrences: 3
Element Occurrence Ranks:
A B C D X U
0 1 0 0 0 2
Occurrence Status:
Historical >20 Years 1
Recent <=20 Years 2
Presence:
Presumed Extant 3
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Arizona (AZ), California (CA), Sonora, Mexico (SO)
California Counties and Islands: Name (Code)
Imperial (IMP), San Diego (SDG)
Quads: Name (Quad Code)
Grays Well (3211468), Grays Well NE (3211467), Acolita (3311512), Amos (3311513), Cactus (3211478), Clark Lake (3311633), Clyde (3211488), East of Acolita (3311511), Fonts Point (3311632), Glamis (3211581), Glamis NW (3211582), Glamis SE (3211571), Tortuga (3311523)
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.

Map

Presumed Extant
Counties   Quads