Species Details

Castilleja densiflora var. obispoensis

San Luis Obispo owl's-clover

  Download Report   Calflora    eFlora    CCH    CalPhotos  
Photo of Castilleja densiflora var. obispoensis
© 2010 Aaron E. Sims
Photo of Castilleja densiflora var. obispoensis
© 2010 Aaron E. Sims
Photo of Castilleja densiflora var. obispoensis
© 2010 Aaron E. Sims
Scientific Name:
Castilleja densiflora (Benth.) T.I. Chuang & Heckard var. obispoensis (D.D. Keck) J.M. Egger
Common Name:
San Luis Obispo owl's-clover
Family: Orobanchaceae
Element Code: PDSCR0D453
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: annual herb (hemiparasitic)
Blooming Period: Mar-May
JFMAMJJASOND
Elevation:
10 - 430 meters
35 - 1410 feet
General Habitats:
  • Meadows and seeps
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Serpentine (sometimes)
Notes:
Threatened by development and grazing. See C. densiflora ssp. obispoensis in TJM 2. See Proceedings of the California Academy of Sciences IV 16:539 (1927) for original description, and Systematic Botany 16:656 (1991) and Phytologia 90(1):63-81 (2008) for revised nomenclature.
Threats:
Taxonomy:
Threat List Total: 14
Total EOs % of EOs
EOs with Threat Listed: 30 43 %
THREAT LIST:
Non-native plant impacts 18 26%
Development 12 17%
Grazing 12 17%
Improper burning regime 10 14%
Military operations 9 13%
Total Occurrences: 69
Element Occurrence Ranks:
A B C D X U
5 12 11 3 0 38
Occurrence Status:
Historical >20 Years 39
Recent <=20 Years 30
Presence:
Presumed Extant 69
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Luis Obispo (SLO)
Quads: Name (Quad Code)
Adelaida (3512067), Arroyo Grande NE (3512025), Bradley (3512077), Cambria (3512151), Cayucos (3512048), Lopez Mtn. (3512035), Morro Bay North (3512047), Morro Bay South (3512037), Oceano (3512015), Paso Robles (3512066), Pico Creek (3512152), Piedras Blancas (3512163), Pismo Beach (3512026), Port San Luis (3512027), San Luis Obispo (3512036), San Simeon (3512162), Santa Margarita (3512045)
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
Click on quad for name. Hold Shift Key to use mouse scroll wheel