Taxon Report

Hemizonia congesta DC. ssp. calyculata Babc. & Hall

Mendocino tarplant

Print Report


© 2015 John Doyen

  Classification
Scientific Name:
 Hemizonia congesta DC. ssp. calyculata Babc. & Hall
Common Name:
 Mendocino tarplant
Family: Asteraceae
Element Code: PDAST4R063
USDA Plants Symbol: HECOC5
Synonyms/Other Names:
  • Hemizonia calyculata (Babc. & Hall) Keck

Ecology and Life History
Lifeform: annual herb
Blooming Period: Jul-Nov Jul-Nov
Elevation: 225-1400 (740-4595)
General Habitats: Cismontane woodland, Valley and foothill grassland
Microhabitat: Serpentine (sometimes)
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 4.3
Global Rank: G5T4
State Rank:
 S4
State List: None
Fed List: None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB
Total Occurrences: 0
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 0

Location
California Endemic:  True
California Counties and Islands: Name (Code)
Lake (LAK), Mendocino (MEN), Sutter (SUT), Tehama (TEH)
Quads: Name (Quad Code)
Bartlett Mtn. (3912227), Clearlake Highlands (3812286), Clearlake Oaks (3912216), Cow Mountain (3912321), Elk Mountain (3912238), Gerber (4012212), Greenough Ridge (3912334), Laughlin Range (3912333), Longvale (3912354), Newhouse Ridge (3912371), Orrs Springs (3912323), Sutter Buttes (3912127), Ukiah (3912322), Upper Lake (3912228), Willis Ridge (3912353), Willits (3912343)

Threat List Data from the CNDDB

Threat List Total: 0
EOs with Threat Listed: Total EOs % of EOs
0 0 %

Notes
Threats:
Taxonomy:

Selected References

Hemizonia congesta ssp. calyculata profile for potential Species of Conservation Concern evaluation (2022)
USFS Potential Species of Conservation Concern Profile
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].