Chorizanthe howellii
Common Name: Howell's spineflower
Family: Polygonaceae
Synonyms:
Element Code: PDPGN040C0
Full Name: Chorizanthe howellii Goodm.
USDA PLANTS Symbol: CHHO2

© 2008 Halleh Paymard
Biology Glossary
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 8
  • Element Occurrence Ranks:
    A B C D X U
    0 3 1 0 0 4
  • Population Status:
    Historic
    >20 yrs
    Recent
    <=20 yrs
    6 2
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    8 0 0
Notes Glossary
  • Known only from north of Ft. Bragg. Threatened by development, foot traffic, recreational activities, vehicles, and non-native plants. Potentially threatened by trail construction. Closely related to C. pungens. See Annals of the Missouri Botanical Garden 21:44 (1934) for original description, and Phytologia 66(2):131-132 (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: 1980-01-01
  • Last Update: 2012-05-14
Location Glossary
  • Elevation: 0 - 35 meters
  • California Endemic: yes
  • States: California
  • California Counties and Islands:   name (code)
    Mendocino (MEN)
  • Quads:   name (DWR code) USGS code
    Fort Bragg (569A) 39123D7,  Inglenook (585D) 39123E7
  • 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 470
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 ].
-123.75,39.375

CA
39123D7=Fort Bragg (569A) 39123D7;39123E7=Inglenook (585D) 39123E7