Species Details

Pedicularis dudleyi

Dudley's lousewort

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Classification

Scientific Name: Pedicularis dudleyi Elmer
Common Name: Dudley's lousewort
Family:	Orobanchaceae
Element Code:	PDSCR1K180
USDA Plants Symbol:	PEDU
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	CR (1979-09-01)
Global Rank:	G2
State Rank:	S2
Other Status:	SB_CalBG/RSABG; SB_UCSC; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Apr-Jun

Elevation:
60 - 900 meters
195 - 2955 feet

General Habitats:

Chaparral (maritime)
Cismontane woodland
North Coast coniferous forest
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by foot traffic, trail maintenance, and erosion. Potentially threatened by development. Plants from Arroyo de la Cruz (SLO Co.) are somewhat different and warrant further study. See Botanical Gazette 41:316-317 (1906) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	12
	Total EOs	% of EOs
EOs with Threat Listed:	7	88 %
Erosion/runoff	4	50%
Improper burning regime	4	50%
Other	4	50%
Road/trail construction/maint.	4	50%
Recreational use (non-ORV)	3	37%
Foot traffic/trampling	3	37%
Disease	2	25%
Wood cutting or brush clearing	2	25%
Development	1	12%
Insufficient population/stand size	1	12%
Logging	1	12%
ORV activity	1	12%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					8
A	B	C	D	X	U
0	3	1	0	3	1

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

Presence:
Presumed Extant	5
Possibly Extirpated	3
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Monterey (MNT), San Mateo (SMT), Santa Cruz (SCR)

Quads: Name (Quad Code)
Big Basin (3712222), Big Sur (3612137), Castle Rock Ridge (3712221), Davenport (3712212), Felton (3712211), Mindego Hill (3712232), Soquel (3612188), Watsonville West (3612187)

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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CNPS Rare Plant Inventory