Taxon Report

Xylorhiza orcuttii (Vasey & Rose) Greene

Orcutt's woody-aster

Print Report


Taxon Summary

Xylorhiza orcuttii, commonly known as Orcutt's woody-aster, is a perennial herb in the Asteraceae that is found in California and elsewhere. It occurs within Sonoran desert scrub, growing at elevations from 0 to 365 meters. Xylorhiza orcuttii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.


  Classification

Scientific Name:
Xylorhiza orcuttii (Vasey & Rose) Greene
Common Name:
Orcutt's woody-aster
Family: Asteraceae
Element Code: PDASTA1040
USDA Plants Symbol: XYOR
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Mar-Apr Mar-Apr
Elevation: 0-365 (0-1200)
General Habitats: Sonoran desert scrub
Microhabitat:
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 66
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 5
   Fair (C) 3
   Poor (D) 0
   None (X) 0
   Unknown (U) 58
California Endemic:  False
California Counties and Islands: Name (Code)
Imperial (IMP), San Diego (SDG)
Quads: Name (Quad Code)
Agua Caliente Springs (3211683), Arroyo Tapiado (3211682), Borrego Mountain (3311622), Borrego Mountain SE (3311611), Borrego Sink (3311623), Carrizo Mtn. (3211671), Carrizo Mtn. NE (3211681), Earthquake Valley (3311614), Fonts Point (3311632), Harper Canyon (3311612), Julian (3311615), Kane Spring NW (3311528), Seventeen Palms (3311631), Shell Reef (3311621), Sweeney Pass (3211672), Whale Peak (3311613)

Threat List Data from the CNDDB

Threat List Total: 5
EOs with Threat Listed: Total EOs % of EOs
22 33 %
ORV activity 20 30%
Road/trail construction/maint. 4 6%
Vandalism/dumping/litter 1 1%
Other 1 1%
Over-collecting/poaching 1 1%

Notes

Does this plant occur in RIV Co.?
Threats:
Threatened by vehicles.
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 31 January 2025].