Species Details

Phacelia damnationensis

Damnation Pass phacelia

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Classification

Scientific Name: Phacelia damnationensis Kierstead, Lindstrand & M.J. Lenz
Common Name: Damnation Pass phacelia
Family:	Hydrophyllaceae
Element Code:	PDHYD0C750
USDA Plants Symbol:
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	BLM_S
CRPR Changes: added to 1B.3 on 2024-03-07
Add Date:	2024-03-07
Date Edited:	2024-11-05

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Sep

Elevation:
1005 - 1440 meters
3295 - 4725 feet

General Habitats:

Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Gravelly
Metamorphic
Openings
Roadsides
Rocky
Sandstone
Shale
Talus

Notes

Notes:
Threats: Possibly threatened by logging, vehicles, road construction, road maintenance, and recreational activities, though appears to tolerate some disturbance caused by these factors.
Taxonomy: Corolla color (cream to apple-green with occasional lavender tinge) similar to P. procera which differs in having stems erect and 0.5–2 m high (vs. decumbent to ascending and 0.3–0.9 m high) with leaf-blades attenuate to auriculate (vs. truncate to subcordate). Other related species (P. bolanderi, P. hydrophylloides) are allopatric.

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	7	64 %
Improper burning regime	6	54%
Logging	6	54%
ORV activity	1	9%
Road/trail construction/maint.	1	9%
Wood cutting or brush clearing	1	9%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					11
A	B	C	D	X	U
0	9	0	0	0	2

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	11

Presence:
Presumed Extant	11
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Shasta (SHA)

Quads: Name (Quad Code)
Bohemotash Mtn. (4012274), Damnation Peak (4012285), Schell Mtn. (4012275), Tombstone Mtn. (4112213), Whiskeytown (4012265)

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

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Selected References

CNPS Status Review:	Proposed Addition to CRPR 1B.3, G2/S2 (2024)
Original Description:	Madroño 69(4): 341–348 (2023)