Chorizanthe douglasii
Common Name: Douglas' spineflower
Family: Polygonaceae
Element Code: PDPGN040A0
Full Name: Chorizanthe douglasii Benth.

© 1999 John Game
Biology Glossary
  • Lifeform: annual herb
  • Blooming Period: April - July
  • Habitat: sandy or gravelly.
    • Chaparral
    • Cismontane woodland
    • Coastal scrub
    • Lower montane coniferous forest
Rarity Status Glossary
Occurrence Data from DFG
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 Extirpated
Notes Glossary
  • See Phytologia 66(2):118-120 (1989) for taxonomic treatment.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1974-01-01
  • Last Update: 2010-03-15
Location Glossary
  • Elevation: 55 - 1600 meters
  • California Endemic: yes
  • States: California
  • California Counties and Islands:   name (code)
    Monterey (MNT),  San Benito (SBT),  San Luis Obispo (SLO)
  • Quads:   name (DWR code) USGS code
    La Panza Ranch (244B) 35120D2,  La Panza (244C) 35120C2,  California Valley (244D) 35120C1,  Camatta Ranch (245A) 35120D3,  Wilson Corner (245B) 35120D4,  Santa Margarita Lake (245C) 35120C4,  Pozo Summit (245D) 35120C3,  Santa Margarita (246A) 35120D5,  Atascadero (246B) 35120D6,  Lopez Mtn. (246D) 35120C5,  Shedd Canyon (268C) 35120E4,  Camatta Canyon (268D) 35120E3,  Estrella (269A) 35120F5,  Creston (269D) 35120E5,  Lime Mountain (270B) 35120F8,  San Simeon (271B) 35121F2,  Tierra Redonda Mountain (294C) 35120G8,  Jolon (295B) 35121H2,  Burnett Peak (295C) 35121G2,  Alder Peak (296A) 35121H3,  San Lucas (318A) 36121B1,  Thompson Canyon (318B) 36121B2,  Cosio Knob (318C) 36121A2,  Junipero Serra Peak (319B) 36121B4,  Cone Peak (319C) 36121A4,  Bear Canyon (319D) 36121A3,  Tassajara Hot Springs (320A) 36121B5,  Partington Ridge (320B) 36121B6,  Lopez Point (320D) 36121A5,  Hernandez Reservoir (340A) 36120D7,  Topo Valley (341A) 36121D1,  North Chalone Peak (341B) 36121D2,  Greenfield (341C) 36121C2,  Sycamore Flat (342C) 36121C4,  Rana Creek (343A) 36121D5,  Carmel Valley (343B) 36121D6,  Ventana Cones (343C) 36121C6,  Chews Ridge (343D) 36121C5,  Mt. Carmel (344A) 36121D7,  Soberanes Point (344B) 36121D8,  Bickmore Canyon (363C) 36121E2,  San Benito (363D) 36121E1,  Mount Johnson (364D) 36121E3,  Salinas (365B) 36121F6,  Spreckels (365C) 36121E6,  Chualar (365D) 36121E5,  Marina (366A) 36121F7,  Monterey (366C) 36121E8,  Seaside (366D) 36121E7,  Morgan Hill (406B) 37121B6
  • 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.
Quad data is not available for all List 3 and 4 plants. For those that do contain this data, it has not been quality controlled and is potentially incomplete, inaccurate, and/or out of date. Please use caution when referencing this information. We are currently working hard to maintain this data and hope to provide accurate and up to date information in the near future.
Presumed Extant Presumed Extirpated or Unknown 469
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 [accessed ].

35120D2=La Panza Ranch (244B) 35120D2;35120C2=La Panza (244C) 35120C2;35120C1=California Valley (244D) 35120C1;35120D3=Camatta Ranch (245A) 35120D3;35120D4=Wilson Corner (245B) 35120D4;35120C4=Santa Margarita Lake (245C) 35120C4;35120C3=Pozo Summit (245D) 35120C3;35120D5=Santa Margarita (246A) 35120D5;35120D6=Atascadero (246B) 35120D6;35120C5=Lopez Mtn. (246D) 35120C5;35120E4=Shedd Canyon (268C) 35120E4;35120E3=Camatta Canyon (268D) 35120E3;35120F5=Estrella (269A) 35120F5;35120E5=Creston (269D) 35120E5;35120F8=Lime Mountain (270B) 35120F8;35121F2=San Simeon (271B) 35121F2;35120G8=Tierra Redonda Mountain (294C) 35120G8;35121H2=Jolon (295B) 35121H2;35121G2=Burnett Peak (295C) 35121G2;35121H3=Alder Peak (296A) 35121H3;36121B1=San Lucas (318A) 36121B1;36121B2=Thompson Canyon (318B) 36121B2;36121A2=Cosio Knob (318C) 36121A2;36121B4=Junipero Serra Peak (319B) 36121B4;36121A4=Cone Peak (319C) 36121A4;36121A3=Bear Canyon (319D) 36121A3;36121B5=Tassajara Hot Springs (320A) 36121B5;36121B6=Partington Ridge (320B) 36121B6;36121A5=Lopez Point (320D) 36121A5;36120D7=Hernandez Reservoir (340A) 36120D7;36121D1=Topo Valley (341A) 36121D1;36121D2=North Chalone Peak (341B) 36121D2;36121C2=Greenfield (341C) 36121C2;36121C4=Sycamore Flat (342C) 36121C4;36121D5=Rana Creek (343A) 36121D5;36121D6=Carmel Valley (343B) 36121D6;36121C6=Ventana Cones (343C) 36121C6;36121C5=Chews Ridge (343D) 36121C5;36121D7=Mt. Carmel (344A) 36121D7;36121D8=Soberanes Point (344B) 36121D8;36121E2=Bickmore Canyon (363C) 36121E2;36121E1=San Benito (363D) 36121E1;36121E3=Mount Johnson (364D) 36121E3;36121F6=Salinas (365B) 36121F6;36121E6=Spreckels (365C) 36121E6;36121E5=Chualar (365D) 36121E5;36121F7=Marina (366A) 36121F7;36121E8=Monterey (366C) 36121E8;36121E7=Seaside (366D) 36121E7;37121B6=Morgan Hill (406B) 37121B6