Calycadenia villosa
Common Name: dwarf calycadenia
Family: Asteraceae
Element Code: PDAST1P0B0
Full Name: Calycadenia villosa DC.

2004 Laura Ann Eliassen
Biology Glossary
  • Lifeform: annual herb
  • Blooming Period: May-Oct
  • Habitat: rocky, fine soils.
    • Chaparral
    • Cismontane woodland
    • Meadows and seeps
    • Valley and foothill grassland
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 59
  • Element Occurrence Ranks:
    A B C D X U
    2 38 3 0 1 15
  • Population Status:
    >20 yrs
    <=20 yrs
    28 31
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    58 0 1
Notes Glossary
  • Probably consists of northern and southern unrecognized subspecies. Habitat lost to construction of San Antonio Reservoir; also threatened by urbanization, vehicles, grazing, feral pigs, alteration of fire regimes, road construction, road maintenance, and non-native plants.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1994-01-01
  • Last Update: 2010-03-15
Location Glossary
  • Elevation: 240 - 1350 meters
  • California Endemic: yes
  • Other States:
  • California Counties and Islands:   name (code)
    Fresno (FRE),  Monterey (MNT),  San Luis Obispo (SLO)
  • Quads:   name (DWR code) USGS code
    La Panza Ranch (244B)* 3512042,  Camatta Ranch (245A) 3512043,  Pozo Summit (245D)* 3512033,  San Luis Obispo (246C)* 3512036,  Creston (269D) 3512055,  Adelaida (270A)* 3512067,  Lime Mountain (270B) 3512068,  San Simeon (271B)* 3512162,  Tierra Redonda Mountain (294C)* 3512078,  Bradley (294D) 3512077,  Williams Hill (295A) 3512181,  Jolon (295B) 3512182,  Burnett Peak (295C) 3512172,  Bryson (295D) 3512171,  Alder Peak (296A) 3512183,  Burro Mountain (296D) 3512173,  Cosio Knob (318C) 3612112,  Bear Canyon (319D) 3612113
  • 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 1602
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 ].

3512042=La Panza Ranch (244B)* 3512042;3512043=Camatta Ranch (245A) 3512043;3512033=Pozo Summit (245D)* 3512033;3512036=San Luis Obispo (246C)* 3512036;3512055=Creston (269D) 3512055;3512067=Adelaida (270A)* 3512067;3512068=Lime Mountain (270B) 3512068;3512162=San Simeon (271B)* 3512162;3512078=Tierra Redonda Mountain (294C)* 3512078;3512077=Bradley (294D) 3512077;3512181=Williams Hill (295A) 3512181;3512182=Jolon (295B) 3512182;3512172=Burnett Peak (295C) 3512172;3512171=Bryson (295D) 3512171;3512183=Alder Peak (296A) 3512183;3512173=Burro Mountain (296D) 3512173;3612112=Cosio Knob (318C) 3612112;3612113=Bear Canyon (319D) 3612113