Taxon Details

Horkelia yadonii

Santa Lucia horkelia

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Photo of Horkelia yadonii
© 2012 Chris Winchell
Photo of Horkelia yadonii
© 2012 Chris Winchell
Photo of Horkelia yadonii
© 2012 Chris Winchell

Taxon Summary:

Horkelia yadonii, commonly known as Santa Lucia horkelia, is a perennial rhizomatous herb in the Rosaceae that is found only in California. It occurs within Broadleafed upland forest, Chaparral, Cismontane woodland, Meadows and seeps, and Riparian woodland, growing at elevations from 300 to 1900 meters. Horkelia yadonii is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Lifeform: perennial rhizomatous herb
Blooming Period: Apr-Jul
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Elevation:
300 - 1900 meters
985 - 6235 feet
General Habitats:
  • Broadleafed upland forest
  • Chaparral
  • Cismontane woodland
  • Meadows and seeps
  • Riparian woodland
Microhabitat Details:
Microhabitat:
  • Granitic
  • Sandy
Notes:
Possibly threatened by vehicles and recreational activities. Confused with H. cuneata ssp. sericea, H. rydbergii, and H. tenuiloba. See Systematic Botany 18(1):139 (1993) for original description.
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)
Monterey (MNT), San Benito (SBT), San Luis Obispo (SLO), Santa Barbara (SBA)
Quads: Name (Quad Code)
Alder Peak (3512183), Big Pine Mtn. (3411966), Burnett Peak (3512172), Burro Mountain (3512173), Camatta Ranch (3512043), Chews Ridge (3612135), Cosio Knob (3612112), Cypress Mountain (3512058), Jolon (3512182), Junipero Serra Peak (3612124), La Panza (3512032), Pozo Summit (3512033), San Benito Mtn. (3612036), San Rafael Mtn. (3411967), Santa Margarita (3512045), Tassajara Hot Springs (3612125), Ventana Cones (3612136), Wilson Corner (3512044)
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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