*The database used to provide updates to the Online Inventory is under construction. View updates and changes made since May 2019 here.
Proboscidea althaeifolia
Common Name: desert unicorn-plant
Family: Martyniaceae
Element Code: PDPED06010
Full Name: Proboscidea althaeifolia (Benth.) Dcne.

2011 Neal Kramer
Biology Glossary
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences:
  • Element Occurrence Ranks:
    A B C D X U
  • Population Status:
    >20 yrs
    <=20 yrs
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
Notes Glossary
  • Potentially threatened by solar energy development and vehicles.
  • 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: 2016-03-23
Location Glossary
  • Elevation: 85 - 1000 meters
  • California Endemic: no
  • Other States: Arizona, Baja California, New Mexico, Sonora
  • California Counties and Islands:   name (code)
    Imperial (IMP),  Riverside (RIV),  San Bernardino (SBD),  San Diego (SDG)
  • Quads:   name (DWR code) USGS code
    Arroyo Tapiado (018B) 3211682,  Sweeney Pass (018C) 3211672,  Agua Caliente Springs (019A) 3211683,  Palo Verde (040B) 3311446,  Thumb Peak (041A) 3311447,  McCoy Wash (058B) 3311466,  Ripley (058C) 3311456,  McCoy Peak (059A) 3311467,  McCoy Spring (059B) 3311468,  Hopkins Well (059C) 3311458,  Roosevelt Mine (059D) 3311457,  Ford Dry Lake (060A) 3311561,  Corn Spring (061A) 3311563,  Desert Center (061B) 3311564,  Hayfield Spring (062A) 3311565,  Styx (076A) 3311487,  Victory Pass (078C) 3311574,  Rice (097D) 3411417,  Savahia Peak NW (122B) 3411446
  • 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.
Includes unprocessed quads for CRPR 3 and 4 plants; unprocessed location data has not been quality controlled and may contain errors.
Presumed Extant Presumed Extirpated or Unknown 1248
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 ].

3211682=Arroyo Tapiado (018B) 3211682;3211672=Sweeney Pass (018C) 3211672;3211683=Agua Caliente Springs (019A) 3211683;3311446=Palo Verde (040B) 3311446;3311447=Thumb Peak (041A) 3311447;3311466=McCoy Wash (058B) 3311466;3311456=Ripley (058C) 3311456;3311467=McCoy Peak (059A) 3311467;3311468=McCoy Spring (059B) 3311468;3311458=Hopkins Well (059C) 3311458;3311457=Roosevelt Mine (059D) 3311457;3311561=Ford Dry Lake (060A) 3311561;3311563=Corn Spring (061A) 3311563;3311564=Desert Center (061B) 3311564;3311565=Hayfield Spring (062A) 3311565;3311487=Styx (076A) 3311487;3311574=Victory Pass (078C) 3311574;3411417=Rice (097D) 3411417;3411446=Savahia Peak NW (122B) 3411446