CPC Plant Profile: Stephens' Beardtongue
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Plant Profile

Stephens' Beardtongue (Penstemon stephensii)

This shot shows a population in bloom in the mountains. Photo Credit: Walter Wisura
  • Global Rank: G3 - Vulnerable
  • Legal Status: N/A
  • Family: Plantaginaceae
  • State: CA
  • Nature Serve ID: 153962
  • Date Inducted in National Collection: 02/25/1988

Penstemon stephensii, part of the Snapdragon Family (Scrophulariaceae), is endemic to southeastern California. It can be found in communities such as Creosote Bush Scrub and Pinyon-Juniper woodlands (CalPhotos 2002).

Participating Institutions
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  • 09/01/2020
  • Orthodox Seed Banking

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 2 accessions of Penstemon stephensii in orthodox seed collection. There are as many as 9162 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

  • 08/05/2020
  • Seed Collection

Based on an August 2020 extract of the California Plant Rescue Database, California Botanic Garden has collected 1 seed accessions of Penstemon stephensii from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 21 maternal plants

Nature Serve Biotics
  • 05/02/2017

Endemic to California, Penstemon stephensii occurs in Inyo and San Bernardino Counties and is threatened by limestone mining.

  • 01/01/2010


  • 01/01/2010

None known.

  • 01/01/2010

None known.


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Taxon Penstemon stephensii
Authority Brandeg.
Family Plantaginaceae
CPC Number 3268
ITIS 33999
Common Names Stephen's beardtongue | Stephens' penstemon | Stephens' beardtongue
Associated Scientific Names Penstemon stephensii
Distribution Penstemon stephensii is endemic to Southwestern California. (Kartesz 1999)
State Rank
State State Rank
California S3?

This species grows in areas of sandy wash conglomerate with limestone cliffs.

Ecological Relationships

This species is hummingbird-pollinated (Kartesz 1999).

Common Name Name in Text Association Type Source InteractionID
Lead Institution State Reintroduction Type Year of First Outplanting

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