CNPS

CNPS Rare Plant Inventory

Species Details

Calycadenia hooveri

Hoover's calycadenia

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  Classification

Scientific Name:
Calycadenia hooveri Carr
Common Name:
Hoover's calycadenia
Family: Asteraceae
Element Code: PDAST1P040
USDA Plants Symbol: CAHO18
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.3
Fed List: None
State List: None
Global Rank: G2
State Rank:
 S2
Other Status: BLM_S
CRPR Changes:
Add Date: 1980-01-01
Date Edited: 2024-11-05

  Ecology and Life History

Lifeform: annual herb
Blooming Period: Jul-Sep
JFMAMJJASOND
Elevation:
65 - 300 meters
215 - 985 feet
General Habitats:
  • Cismontane woodland
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Rocky

  Notes

Notes:
Threatened by development. See Brittonia 27:136 (1975) for original description.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 4
Total EOs % of EOs
EOs with Threat Listed: 12 32 %
THREAT LIST:
Grazing 8 21%
Development 4 10%
Agriculture 1 2%
Road/trail construction/maint. 1 2%

  Occurrence Data from the CNDDB

Total Occurrences: 37
Element Occurrence Ranks:
A B C D X U
4 9 0 0 1 23
Occurrence Status:
Historical >20 Years 33
Recent <=20 Years 4
Presence:
Presumed Extant 36
Possibly Extirpated 1
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Calaveras (CAL), Madera (MAD), Mariposa (MPA), Merced (MER), San Joaquin (SJQ), Stanislaus (STA)
Quads: Name (Quad Code)
Cooperstown (3712065), Haystack Mtn. (3712043), Indian Gulch (3712042), Keystone (3712075), La Grange (3712064), Lanes Bridge (3611987), Merced Falls (3712053), Montpelier (3712056), Owens Reservoir (3712032), Paulsell (3712066), Raynor Creek (3712021), Snelling (3712054), Wallace (3812028)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Regional Map

  Map

Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 24 November 2024].