Taxon Report

Penstemon newberryi Gray var. sonomensis (Greene) Jeps.

Sonoma beardtongue

Print Report


Jason Matthias Mills 2020

Taxon Summary

Penstemon newberryi var. sonomensis, commonly known as Sonoma beardtongue, is a perennial herb in the Plantaginaceae that is found only in California. It occurs within Chaparral, growing at elevations from 700 to 1370 meters. Penstemon newberryi var. sonomensis is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.


  Classification

Scientific Name:
Penstemon newberryi Gray var. sonomensis (Greene) Jeps.
Common Name:
Sonoma beardtongue
Family: Plantaginaceae
Element Code: PDSCR1L483
USDA Plants Symbol:
Synonyms/Other Names:

Occurrence Data from the CNDDB

Total Occurrences: 15
Element Occurrence Ranks:
   Excellent (A) 3
   Good (B) 2
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 10
California Endemic:  True
California Counties and Islands: Name (Code)
Lake (LAK), Napa (NAP), Sonoma (SON)
Quads: Name (Quad Code)
Aetna Springs (3812264), Calistoga (3812255), Detert Reservoir (3812265), Kelseyville (3812287), Kenwood (3812245), Mount St. Helena (3812266), St. Helena (3812254), Whispering Pines (3812276), Yountville (3812243)

Threat List Data from the CNDDB

Threat List Total: 3
EOs with Threat Listed: Total EOs % of EOs
3 20 %
Foot traffic/trampling 1 6%
Recreational use (non-ORV) 1 6%
Road/trail construction/maint. 1 6%

Notes

Possibly threatened by recreational activities. Known from fewer than twenty occurrences.
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 13 March 2025].