Species Details

Penstemon filiformis

thread-leaved beardtongue

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Steve Matson (2015)

Julie Kierstead (2015)

Classification

Scientific Name: Penstemon filiformis (Keck) Keck
Common Name: thread-leaved beardtongue
Family:	Plantaginaceae
Element Code:	PDSCR1L2A0
USDA Plants Symbol:	PEFI2
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S4
Other Status:	SB_UCSC
CRPR Changes: changed from 1B.3 to 4.2 on 2020-05-07
Add Date:	1974-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Aug(Sep)

Elevation:
450 - 1875 meters
1475 - 6150 feet

General Habitats:

Cismontane woodland
Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Rocky
Serpentine (often)

Notes

Notes: Changed from 1B.3 to 4.2 on 2020-05-07 More common than originally known. Possibly threatened by logging, road maintenance, and recreation. Reported to tolerate some types of disturbance. Confused with P. laetus var. sagittatus. See University of California Publications in Botany 16:394 (1932) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	10
	Total EOs	% of EOs
EOs with Threat Listed:	67	71 %
Logging	49	51%
Road/trail construction/maint.	29	30%
Other	7	7%
Improper burning regime	4	4%
Insufficient population/stand size	3	3%
Grazing	2	2%
Development	1	1%
Erosion/runoff	1	1%
Recreational use (non-ORV)	1	1%
Non-native plant impacts	1	1%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					95
A	B	C	D	X	U
7	45	12	1	0	30

Occurrence Status:
Historical >20 Years	62
Recent <=20 Years	33

Presence:
Presumed Extant	95
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Shasta (SHA), Siskiyou (SIS), Trinity (TRI)

Quads: Name (Quad Code)
Caribou Lake (4112218), Carrville (4112216), Chicken Hawk Hill (4112214), Covington Mill (4012287), Damnation Peak (4012285), Dunsmuir (4112223), Lamoine (4012284), Mumbo Basin (4112225), Papoose Creek (4012276), Rush Creek Lakes (4012278), Schell Mtn. (4012275), Seven Lakes Basin (4112224), Siligo Peak (4012288), Tangle Blue Lake (4112226), Tombstone Mtn. (4112213), Trinity Center (4012286), Trinity Dam (4012277), Whisky Bill Peak (4112215), Ycatapom Peak (4112217)

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

Selected References

CNPS Status Review:	CRPR List Change on 2020-05-07
Other:	USFS Potential Species of Conservation Concern Profile