Potamogeton zosteriformis
Common Name: eel-grass pondweed
Family: Potamogetonaceae
Element Code: PMPOT03160
Full Name: Potamogeton zosteriformis Fern.

Biology Glossary
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 20
  • Element Occurrence Ranks:
    A B C D X U
    0 6 1 0 0 13
  • Population Status:
    >20 yrs
    <=20 yrs
    13 7
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    20 0 0
Notes Glossary
  • To be expected in the Central Valley; need information.
  • 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: 2013-06-12
Location Glossary
  • Elevation: 0 - 1860 meters
  • California Endemic: no
  • States: California, !AK, !CT, !IA, Idaho, !IL, !IN, !KS, !MA, !MD, !ME, !MI, !MN, !MT, !ND, !NE, !NH, !NJ, !NY, !OH, Oregon, !PA, !SD, Utah, !VA, !VT, Washington, !WI, !WV, Wyoming
  • California Counties and Islands:   name (code)
    Contra Costa (CCA),  Lake (LAK),  Lassen (LAS),  Merced (MER),  Mono (MNO),  Modoc (MOD),  Shasta (SHA)
  • Quads:   name (DWR code) USGS code
    Merced Falls (440D) 37120E3,  Jersey Island (480C) 38121A6,  Bouldin Island (480D) 38121A5,  Fales Hot Springs (488C) 38119C4,  Clearlake Highlands (533B) 38122H6,  Wendel (620C) 40120C2,  Cassel (662A) 40121H5,  Jess Valley (674A) 41120B3,  Burney Falls (679C) 41121A6,  Dana (679D) 41121A5,  Alturas (692A) 41120D5,  Rattlesnake Butte (692B) 41120D6,  Infernal Caverns (692D) 41120C5,  Canby (693A) 41120D7,  Washington Mtn. (693B) 41120D8,  Egg Lake (695D) 41121C3,  Boles Meadows East (710A) 41120F7
  • 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 1750
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 ].

37120E3=Merced Falls (440D) 37120E3;38121A6=Jersey Island (480C) 38121A6;38121A5=Bouldin Island (480D) 38121A5;38119C4=Fales Hot Springs (488C) 38119C4;38122H6=Clearlake Highlands (533B) 38122H6;40120C2=Wendel (620C) 40120C2;40121H5=Cassel (662A) 40121H5;41120B3=Jess Valley (674A) 41120B3;41121A6=Burney Falls (679C) 41121A6;41121A5=Dana (679D) 41121A5;41120D5=Alturas (692A) 41120D5;41120D6=Rattlesnake Butte (692B) 41120D6;41120C5=Infernal Caverns (692D) 41120C5;41120D7=Canby (693A) 41120D7;41120D8=Washington Mtn. (693B) 41120D8;41121C3=Egg Lake (695D) 41121C3;41120F7=Boles Meadows East (710A) 41120F7