Ivesia paniculata
Common Name: Ash Creek ivesia
Family: Rosaceae
Element Code: PDROS0X0S0
Full Name: Ivesia paniculata T.W. Nelson & J.P. Nelson

2007 F. Gauna
Biology Glossary
  • Lifeform: perennial herb
  • Blooming Period: May-Aug
  • Habitat: volcanic, rocky or gravelly.
    • Great Basin scrub
    • Pinyon and juniper woodland
    • Upper montane coniferous forest
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 26
  • Element Occurrence Ranks:
    A B C D X U
    6 12 0 0 1 7
  • Population Status:
    >20 yrs
    <=20 yrs
    9 17
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    25 1 0
Notes Glossary
  • Known only from the Ash Valley region. Threatened by road maintenance, logging, trampling, and grazing. Protected in part at Ash Valley RNA (BLM). Previously included as I. corymbosa, a name that was never validly published. See Brittonia 33(2):165-167 (1981) for original description, and Fremontia 16(1):15-17 (1988) for brief species account and BLM management plans.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1980-01-01
  • Last Update: 2017-07-14
Location Glossary
  • Elevation: 1500 - 1950 meters
  • California Endemic: yes
  • Other States:
  • California Counties and Islands:   name (code)
    Lassen (LAS),  Modoc (MOD)
  • Quads:   name (DWR code) USGS code
    Whitinger Mtn. (658B) 4012086,  Said Valley (659A) 4012087,  Likely (675A) 4112025,  Ash Valley (675C) 4112016,  Ambrose Valley (676A) 4112027,  Letterbox Hill (676C) 4112018,  Lane Reservoir (676D) 4112017
  • 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 932
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 http://www.rareplants.cnps.org [accessed ].

4012086=Whitinger Mtn. (658B) 4012086;4012087=Said Valley (659A) 4012087;4112025=Likely (675A) 4112025;4112016=Ash Valley (675C) 4112016;4112027=Ambrose Valley (676A) 4112027;4112018=Letterbox Hill (676C) 4112018;4112017=Lane Reservoir (676D) 4112017