Species Details

Castilleja hololeuca

island white-felted paintbrush

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Photo of Castilleja hololeuca
Keir Morse
Photo of Castilleja hololeuca
Steve Matson
Photo of Castilleja hololeuca
Keir Morse

Species Description:

Castilleja hololeuca, commonly known as island white-felted paintbrush, is a perennial herb (hemiparasitic) in the Orobanchaceae that is found only in California. It occurs within Chaparral, Closed-cone coniferous forest, and Coastal scrub, growing at elevations from 20 to 365 meters. Castilleja hololeuca is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Lifeform: perennial herb (hemiparasitic)
Blooming Period: Feb-Sep
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Elevation:
20 - 365 meters
65 - 1200 feet
General Habitats:
  • Closed-cone coniferous forest
  • Chaparral
  • Coastal scrub
Microhabitat Details:
Microhabitat:
  • Rocky
Notes:
Threatened by feral herbivores on SCZ and SRO islands; also by grazing on SRO Isl.
Threats:
Taxonomy:
Total Occurrences: 41
Element Occurrence Ranks:
A B C D X U
0 1 0 0 0 40
Occurrence Status:
Historical >20 Years 39
Recent <=20 Years 2
Presence:
Presumed Extant 41
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Anacapa Island (3311983), San Miguel Island East (3312083), San Miguel Island West (3312084), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Cruz Island D (3311984), Santa Rosa Island North (3312081), Santa Rosa Island South (3312071)
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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