Species Details

Centromadia parryi ssp. rudis

Parry's rough tarplant

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Photo of Centromadia parryi ssp. rudis
© 2019 John Doyen
Photo of Centromadia parryi ssp. rudis
© 2019 John Doyen
Photo of Centromadia parryi ssp. rudis
© 2015 Chris Winchell
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:
Lifeform: annual herb
Blooming Period: May-Oct
0 - 100 meters
0 - 330 feet
General Habitats:
  • Valley and foothill grassland
  • Vernal pools
Microhabitat Details:
  • Alkaline
  • Roadsides (sometimes)
  • Seeps
  • Vernally Mesic
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.
Threatened by development, habitat alteration and habitat disturbance. Possibly threatened by grazing and road maintenance.
See Hemizonia parryi ssp. rudis in The Jepson Manual (1993).
Total Occurrences: 0
Element Occurrence Ranks:
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
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)
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.
Presumed Extant
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