Centromadia parryi ssp. australis
Common Name: southern tarplant
Family: Asteraceae
Synonyms: Hemizonia parryi ssp. australis
Element Code: PDAST4R0P4
Full Name: Centromadia parryi (Greene) Greene ssp. australis (Keck) B.G. Baldwin

2003 Lynn Watson
Biology Glossary
  • Lifeform: annual herb
  • Blooming Period: May - November
  • Habitat:  
    • Marshes and swamps (margins)
    • Valley and foothill grassland (vernally mesic)
    • Vernal pools
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 87
  • Element Occurrence Ranks:
    A B C D X U
    1 12 12 4 10 48
  • Population Status:
    >20 yrs
    <=20 yrs
    42 45
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    77 4 6
Notes Glossary
  • Need confirmation of SCT Isl. occurrences. Many ORA Co. occurrences recently extirpated. Many historical occurrences also extirpated; need information. Population fragmentation a serious problem, and plant continues to be threatened by urbanization, vehicles, development, foot traffic, grazing, habitat disturbance, and competition from non-native plants. A synonym of Hemizonia parryi ssp. australis in TJM (1993). See Madroño 3(1):15 (1935) for original description, and Novon 9:462-471 (1999) for revised nomenclature.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1994-01-01
  • Last Update: 2013-10-04
Location Glossary
  • Elevation: 0 - 480 meters
  • California Endemic: no
  • States: California, Baja California
  • California Counties and Islands:   name (code)
    Los Angeles (LAX),  Orange (ORA),  Santa Barbara (SBA),  Santa Catalina Island (SCT) ?,  San Diego (SDG),  Ventura (VEN)
  • Quads:   name (DWR code) USGS code
    Del Mar (022B) 32117H2,  San Pasqual (034C) 33116A8,  Ramona (034D) 33116A7,  San Marcos (035B) 33117B2,  Escondido (035D) 33117A1,  Morro Hill (051D) 33117C3,  Canada Gobernadora (070D) 33117E5,  Tustin (071A) 33117F7,  Newport Beach (071B) 33117F8,  Seal Beach (072A) 33118F1,  Yorba Linda (088A) 33117H7,  Anaheim (088C)* 33117G8,  Orange (088D) 33117G7,  South Gate (089B)* 33118H2,  Long Beach (089C)* 33118G2,  Los Alamitos (089D) 33118G1,  Inglewood (090A)* 33118H3,  Venice (090B)* 33118H4,  Torrance (090D) 33118G3,  Baldwin Park (109C) 34117A8,  Pasadena (110B)* 34118B2,  El Monte (110D) 34118A1,  Van Nuys (111B)* 34118B4,  Beverly Hills (111C)* 34118A4,  Hollywood (111D)* 34118A3,  Newbury Park (113B) 34118B8,  Sunland (137D) 34118C3,  Pitas Point (141C)(*?) 34119C4,  Goleta (143A) 34119D7,  Dos Pueblos Canyon (143B) 34119D8,  Santa Catalina East (SCTE)? 33118C3
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable.
Presumed Extant Presumed Extirpated or Unknown 144
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website http://www.rareplants.cnps.org [accessed ].

32117H2=Del Mar (022B) 32117H2;33116A8=San Pasqual (034C) 33116A8;33116A7=Ramona (034D) 33116A7;33117B2=San Marcos (035B) 33117B2;33117A1=Escondido (035D) 33117A1;33117C3=Morro Hill (051D) 33117C3;33117E5=Canada Gobernadora (070D) 33117E5;33117F7=Tustin (071A) 33117F7;33117F8=Newport Beach (071B) 33117F8;33118F1=Seal Beach (072A) 33118F1;33117H7=Yorba Linda (088A) 33117H7;33117G8=Anaheim (088C)* 33117G8;33117G7=Orange (088D) 33117G7;33118H2=South Gate (089B)* 33118H2;33118G2=Long Beach (089C)* 33118G2;33118G1=Los Alamitos (089D) 33118G1;33118H3=Inglewood (090A)* 33118H3;33118H4=Venice (090B)* 33118H4;33118G3=Torrance (090D) 33118G3;34117A8=Baldwin Park (109C) 34117A8;34118B2=Pasadena (110B)* 34118B2;34118A1=El Monte (110D) 34118A1;34118B4=Van Nuys (111B)* 34118B4;34118A4=Beverly Hills (111C)* 34118A4;34118A3=Hollywood (111D)* 34118A3;34118B8=Newbury Park (113B) 34118B8;34118C3=Sunland (137D) 34118C3;34119C4=Pitas Point (141C)(*?) 34119C4;34119D7=Goleta (143A) 34119D7;34119D8=Dos Pueblos Canyon (143B) 34119D8;33118C3=Santa Catalina East (SCTE)? 33118C3