Taxon Report

Hoita strobilina (H. & A.) Rydb.

Loma Prieta hoita

Print Report


© 2004 Janell Hillman

Taxon Summary

Hoita strobilina, commonly known as Loma Prieta hoita, is a perennial herb in the Fabaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Riparian woodland, growing at elevations from 30 to 860 meters. Hoita strobilina is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.


  Classification

Scientific Name:
Hoita strobilina (H. & A.) Rydb.
Common Name:
Loma Prieta hoita
Family: Fabaceae
Element Code: PDFAB5Z030
USDA Plants Symbol: HOST3
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Jul(Aug-Oct) May-Jul(Aug-Oct)
Elevation: 30-860 (100-2820)
General Habitats: Chaparral, Cismontane woodland, Riparian woodland
Microhabitat: Mesic, Serpentine (usually)
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 44
Element Occurrence Ranks:
   Excellent (A) 11
   Good (B) 12
   Fair (C) 10
   Poor (D) 0
   None (X) 2
   Unknown (U) 9
California Endemic:  True
California Counties and Islands: Name (Code)
Alameda (ALA)*, Contra Costa (CCA), Santa Clara (SCL), Santa Cruz (SCR)
Quads: Name (Quad Code)
Castle Rock Ridge (3712221), Cedar Mtn. (3712155), Chittenden (3612185), Cupertino (3712231), Gilroy (3712115), Hayward (3712261), Las Trampas Ridge (3712271), Laurel (3712118), Loma Prieta (3712117), Los Gatos (3712128), Morgan Hill (3712126), Mt. Madonna (3712116), Oakland East (3712272), Richmond (3712283), San Leandro (3712262), Santa Teresa Hills (3712127)

Threat List Data from the CNDDB

Threat List Total: 13
EOs with Threat Listed: Total EOs % of EOs
26 59 %
Road/trail construction/maint. 10 22%
Foot traffic/trampling 9 20%
Non-native plant impacts 7 15%
Wood cutting or brush clearing 6 13%
Development 5 11%
Erosion/runoff 4 9%
Other 3 6%
Insufficient population/stand size 3 6%
Feral pigs 2 4%
Grazing 2 4%
Improper burning regime 2 4%
Recreational use (non-ORV) 1 2%
ORV activity 1 2%

Notes

Threatened by urbanization. Possibly threatened by feral pigs and foot traffic. See North American Flora 24:11 (1919) for revised nomenclature, and Memoirs of the New York Botanical Garden 61:1-114 (1990) for taxonomic treatment.
Threats:
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 20 February 2025].