Species Details

Holocarpha virgata ssp. elongata

graceful tarplant

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Photo of Holocarpha virgata ssp. elongata
© 2013 Anna Bennett
Photo of Holocarpha virgata ssp. elongata
© 2013 Anna Bennett
Photo of Holocarpha virgata ssp. elongata
© 2009 Anna Bennett

Species Description:

Holocarpha virgata ssp. elongata, commonly known as graceful tarplant, is a annual herb in the Asteraceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Coastal scrub, and Valley and foothill grassland, growing at elevations from 60 to 1100 meters. Holocarpha virgata ssp. elongata is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Scientific Name:
Holocarpha virgata (Gray) Keck ssp. elongata Keck
Common Name:
graceful tarplant
Family: Asteraceae
Element Code: PDAST4X041
USDA Plants Symbol: HOVIE
Synonyms/Other Names:
Name Status: JEP, FNA, POWO,
IPNI, Tropicos
Lifeform: annual herb
Blooming Period: May-Nov
JFMAMJJASOND
Elevation:
60 - 1100 meters
195 - 3610 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
  • Coastal scrub
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
Notes:
Known in RIV Co. only from Santa Rosa Plateau. Potentially threatened by development. See Aliso 4:111 (1958) for original description. Threatened by development.
Threats:
Taxonomy:
Total Occurrences: 0
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presence:
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Orange (ORA), Riverside (RIV), San Diego (SDG)
Quads: Name (Quad Code)
Bonsall (3311732), Boucher Hill (3311638), Cuyamaca Peak (3211685), Del Mar (3211782), El Cajon (3211678), Escondido (3311711), Fallbrook (3311743), Hemet (3311668), Imperial Beach (3211751), Jamul Mountains (3211668), Julian (3311615), La Jolla (3211772), La Mesa (3211771), Margarita Peak (3311744), Mesa Grande (3311627), Murrieta (3311752), National City (3211761), Otay Mesa (3211658), Pala (3311731), Poway (3211781), Rancho Santa Fe (3311712), San Clemente (3311745), San Marcos (3311722), San Pasqual (3311618), San Vicente Reservoir (3211688), Santa Ysabel (3311616), Sitton Peak (3311754), Temecula (3311742), Wildomar (3311753)
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.
Presumed Extant
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