Species Details

Symphyotrichum defoliatum

San Bernardino aster

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Scientific Name:
Symphyotrichum defoliatum (Parish) Nesom
Common Name:
San Bernardino aster
Family: Asteraceae
Element Code: PDASTE80C0
USDA Plants Symbol: SYDE
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2
State Rank:
S2
Other Status: SB_CalBG/RSABG; SB_CRES; USFS_S
CRPR Changes:
added to 1B on 2004-08-20
Add Date: 2004-01-01
Date Edited: 2022-06-08
Lifeform: perennial rhizomatous herb
Blooming Period: Jul-Nov
Elevation:
2 - 2040 meters
5 - 6695 feet
General Habitat:
  • Cismontane woodland
  • Coastal scrub
  • Lower montane coniferous forest
  • Meadows and seeps
  • Marshes and swamps
  • Valley and foothill grassland (vernally mesic)
General Micro Habitat: near ditches, streams, springs
Micro Habitat:
  • Streambanks
Notes:
Possibly threatened by non-native plants. Possible hybrids have been collected in VEN, SBA and SLO cos. Identification of specimen from OBI Co. (221D) needs verification. A synonym of Aster bernardinus in TJM (1993). See Phytologia 77(3):279 (1994) for revised nomenclature.
Threats:
Taxonomy:
Other:
Total Occurrences: 102
Element Occurrence Ranks:
A B C D X U
1 6 1 1 16 77
Occurrence Status:
Historical >20 Years 56
Recent <=20 Years 46
Presence:
Presumed Extant 86
Possibly Extirpated 3
Presumed Extirpated 13
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Imperial (IMP), Kern (KRN), Los Angeles (LAX), Orange (ORA), Riverside (RIV), San Bernardino (SBD), San Diego (SDG), San Luis Obispo (SLO)?, Santa Barbara (SBA)
Quads: Name (Quad Code)
Alberhill (3311764), Anaheim (3311778), Baldwin Park (3411718), Beauty Mountain (3311646), Big Bear City (3411637), Big Bear Lake (3411628), Boucher Hill (3311638), Cabazon (3311687), Cajon (3411734), Cameron Corners (3211664), Crystal Lake (3411737), Cuddy Valley (3411971), Cuyamaca Peak (3211685), Descanso (3211675), El Casco (3311781), Fontana (3411714), Frazier Mtn. (3411878), Guasti (3411715), Harrison Mtn. (3411722), Hollywood (3411813), Idyllwild (3311666), In-ko-pah Gorge (3211661), Julian (3311615), La Habra (3311788), Lake Fulmor (3311677), Lake Mathews (3311774), Lebec (3411877), Live Oak Springs (3211663), Long Beach (3311872), Los Alamitos (3311871)*, Monument Peak (3211684), Morena Reservoir (3211665), Mount Laguna (3211674), Mount San Antonio (3411736), Murrieta (3311752)*, Newport Beach (3311768)*, Oceano (3512015)?, Ontario (3411716)*, Orcutt (3412074), Palomar Observatory (3311637), Prado Dam (3311786)*, San Bernardino North (3411723), San Bernardino South (3411713), San Dimas (3411717), San Jacinto Peak (3311676), Santa Ysabel (3311616), Seal Beach (3311861)*, Sunnymead (3311782), Telegraph Peak (3411735), Torrance (3311873), Tustin (3311767)*, Victorville (3411753), Warner Springs (3311636), Warners Ranch (3311626), Whittier (3311881), Wildomar (3311753)
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