Taxon Report

Centromadia parryi (Greene) Greene ssp. rudis (Greene) B.G. Baldwin

Parry's rough tarplant

Print Report


© 2019 John Doyen

  Classification
Scientific Name:
 Centromadia parryi (Greene) Greene ssp. rudis (Greene) B.G. Baldwin
Common Name:
 Parry's rough tarplant
Family: Asteraceae
Element Code: PDAST4R0P3
USDA Plants Symbol: CEPAR4
Synonyms/Other Names:

Ecology and Life History
Lifeform: annual herb
Blooming Period: May-Oct May-Oct
Elevation: 0-100 (0-330)
General Habitats: Valley and foothill grassland, Vernal pools
Microhabitat: Alkaline, Roadsides (sometimes), Seeps, Vernally Mesic
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 4.2
Global Rank: G3T3
State Rank:
 S3
State List: None
Fed List: None
Other Status:
CRPR Changes:
  • added to 4.2 on 2007-05-22

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)
Butte (BUT), Colusa (COL), Glenn (GLE), Lake (LAK), Merced (MER), Modoc (MOD), Sacramento (SAC), San Joaquin (SJQ), Solano (SOL), Stanislaus (STA), Yolo (YOL)
Quads: Name (Quad Code)
Adin (4112028), Arbuckle (3912211), Big Swamp (4112121), Birds Landing (3812127), Bruceville (3812134), Brush Lake (3712151), Butte City (3912148), Clarksburg (3812145), Colusa (3912221), Courtland (3812135), Davis (3812156), Dixon (3812147), Dozier (3812137), Elmira (3812138), Florin (3812144), Glenn (3912251), Grays Bend (3812166), Knights Landing (3812176), Llano Seco (3912158), Logandale (3912242), Los Banos (3712017), Maxwell (3912232), Meridian (3912128), Moulton Weir (3912231), Mt. George (3812232), Pennington (3912137), Princeton (3912241), Sacramento West (3812155), Salt Canyon (3912213), San Luis Ranch (3712027), Sandy Mush (3712025), Santa Rita Bridge (3712015), Saxon (3812146), Sites (3912233), Stockton East (3712182)?, Taylor Monument (3812165), Turner Ranch (3712026), West of Biggs (3912147), Wilbur Springs (3912214), Williams (3912222), Winters (3812158), Woodland (3812167)

Threat List Data from the CNDDB

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

Notes
Protected on several refuges including Sacramento NWR, Colusa NWR, the Llano Seco Unit of the North Valley Wildlife Management Area, the Llano Seco Ranch, and the Vic Fazio Yolo Wetlands Preserve.
Threats:
Threatened by development, habitat alteration and habitat disturbance. Possibly threatened by grazing and road maintenance.
Taxonomy:
See Hemizonia parryi ssp. rudis in The Jepson Manual (1993).

Selected References

Proposed Addition to CRPR 4.2, G4T3 / S3.2 (2007)
Manual of the Botany of the Region of San Francisco Bay 197(1894)
Novon 9: 467(1999)
Profile for potential SCC evaluation (2018)
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 4 January 2025].