Erigeron maniopotamicus
Common Name: Mad River fleabane daisy
Family: Asteraceae
Element Code: PDASTE1050
Full Name: Erigeron maniopotamicus G.L. Nesom & T.W. Nelson

2007 Maria J. Boudreaux
Biology Glossary
  • Lifeform: perennial herb
  • Blooming Period: May-Aug
  • Habitat: open, disturbed areas (road cuts); rocky.
    • Lower montane coniferous forest
    • Meadows and seeps (open, dry)
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 10
  • Element Occurrence Ranks:
    A B C D X U
    0 3 1 0 0 6
  • Population Status:
    >20 yrs
    <=20 yrs
    2 8
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    10 0 0
Notes Glossary
  • Known from widely disjunct locations in east-central HUM Co. and adjacent TRI Co. Potentially threatened by road maintenance, road construction, grazing, and logging. Not in TJM (1993). See SIDA 21(2): 673 (2004) for original description.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 2005-01-01
  • Last Update: 2014-07-17
Location Glossary
  • Elevation: 1275 - 1500 meters
  • California Endemic: yes
  • Other States:
  • California Counties and Islands:   name (code)
    Humboldt (HUM),  Trinity (TRI)
  • Quads:   name (DWR code) USGS code
    Zenia (615B) 4012324,  Dinsmore (634A) 4012345,  Board Camp Mtn. (652B) 4012366
  • 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. This data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant Presumed Extirpated or Unknown 2092
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website [accessed ].

4012324=Zenia (615B) 4012324;4012345=Dinsmore (634A) 4012345;4012366=Board Camp Mtn. (652B) 4012366