Taxon Details

Penstemon thompsoniae

Thompson's beardtongue

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Penstemon thompsoniae, commonly known as Thompson's beardtongue, is a perennial herb in the Plantaginaceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland (gravelly, and carbonate), growing at elevations from 1500 to 2700 meters. Penstemon thompsoniae is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Penstemon thompsoniae (Gray) Rydb.
Common Name: Thompson's beardtongue
Family:	Plantaginaceae
Element Code:	PDSCR1L670
USDA Plants Symbol:	PETH2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S1
Other Status:	SB_CalBG/RSABG
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Jun

Elevation:
1500 - 2700 meters
4920 - 8860 feet

General Habitats:

Pinyon and juniper woodland (gravelly, carbonate)

Microhabitat Details:

Microhabitat:

Notes

Notes: See Synoptical Flora of North America 2(1):269 (1878) for original description, Bulletin of the Torrey Botanical Club 36(1):690 (1909) for revised nomenclature, and Aliso 2(2):194-195 (1950) for species information.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	1	17 %
Recreational use (non-ORV)	1	16%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					6
A	B	C	D	X	U
0	0	0	0	0	6

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	2

Presence:
Presumed Extant	6
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), California (CA), Nevada (NV), Utah (UT)

California Counties and Islands: Name (Code)
San Bernardino (SBD)

Quads: Name (Quad Code)
Clark Mtn. (3511555), Ivanpah (3511533), Pinto Valley (3511523)

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.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory