Penstemon filiformis
Common Name: thread-leaved beardtongue
Family: Plantaginaceae
Element Code: PDSCR1L2A0
Full Name: Penstemon filiformis (Keck) Keck

2008 Sierra Pacific Industries
Biology Glossary
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 94
  • Element Occurrence Ranks:
    A B C D X U
    7 42 12 1 0 32
  • Population Status:
    >20 yrs
    <=20 yrs
    29 65
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    94 0 0
Notes Glossary
  • Possibly threatened by logging, road maintenance, and recreation. Confused with P. laetus var. sagittatus. See University of California Publications in Botany 16:394 (1932) for original description.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1974-01-01
  • Last Update: 2014-05-29
Location Glossary
  • Elevation: 450 - 1875 meters
  • California Endemic: yes
  • States: California
  • California Counties and Islands:   name (code)
    Shasta (SHA),  Siskiyou (SIS),  Trinity (TRI)
  • Quads:   name (DWR code) USGS code
    Lamoine (665B) 40122H4,  Damnation Peak (666A) 40122H5,  Trinity Center (666B) 40122H6,  Covington Mill (667A) 40122H7,  Siligo Peak (667B) 40122H8,  Rush Creek Lakes (667C) 40122G8,  Trinity Dam (667D) 40122G7,  Dunsmuir (682A) 41122B3,  Seven Lakes Basin (682B) 41122B4,  Chicken Hawk Hill (682C) 41122A4,  Tombstone Mtn. (682D) 41122A3,  Mumbo Basin (683A) 41122B5,  Tangle Blue Lake (683B) 41122B6,  Carrville (683C) 41122A6,  Whisky Bill Peak (683D) 41122A5,  Caribou Lake (684C) 41122A8,  City of Mount Shasta (699D) 41122C3,  Somes Bar (703B) 41123D4,  Orleans Mtn. (703C) 41123C4
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable.
Presumed Extant Presumed Extirpated or Unknown 1231
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website [accessed ].

40122H4=Lamoine (665B) 40122H4;40122H5=Damnation Peak (666A) 40122H5;40122H6=Trinity Center (666B) 40122H6;40122H7=Covington Mill (667A) 40122H7;40122H8=Siligo Peak (667B) 40122H8;40122G8=Rush Creek Lakes (667C) 40122G8;40122G7=Trinity Dam (667D) 40122G7;41122B3=Dunsmuir (682A) 41122B3;41122B4=Seven Lakes Basin (682B) 41122B4;41122A4=Chicken Hawk Hill (682C) 41122A4;41122A3=Tombstone Mtn. (682D) 41122A3;41122B5=Mumbo Basin (683A) 41122B5;41122B6=Tangle Blue Lake (683B) 41122B6;41122A6=Carrville (683C) 41122A6;41122A5=Whisky Bill Peak (683D) 41122A5;41122A8=Caribou Lake (684C) 41122A8;41122C3=City of Mount Shasta (699D) 41122C3;41123D4=Somes Bar (703B) 41123D4;41123C4=Orleans Mtn. (703C) 41123C4