Taxon Details

Pedicularis howellii

Howell's lousewort

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Taxon Summary:

Pedicularis howellii, commonly known as Howell's lousewort, is a perennial herb in the Orobanchaceae that is found in California and elsewhere. It occurs within Upper montane coniferous forest, growing at elevations from 1500 to 1900 meters. Pedicularis howellii is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification

Scientific Name: Pedicularis howellii Gray
Common Name: Howell's lousewort
Family:	Orobanchaceae
Element Code:	PDSCR1K0J0
USDA Plants Symbol:	PEHO
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S3
Other Status:	USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-08-02

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Aug

Elevation:
1500 - 1900 meters
4920 - 6235 feet

General Habitats:

Upper montane coniferous forest (often serpentinite)

Microhabitat Details:

Microhabitat:

Notes

Notes:
Threats: Threatened by grazing. Endangered in OR.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

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

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

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Del Norte (DNT), Siskiyou (SIS)

Quads: Name (Quad Code)
Bear Peak (4112365), Deadman Point (4112384), Dutch Creek (4112381), Figurehead Mtn. (4112383), Kangaroo Mtn. (4112382), Polar Bear Mtn. (4112385), Prescott Mtn. (4112366), Preston Peak (4112375)

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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Original Description:	Proceedings of the American Academy of Arts and Sciences 20:307 (1885)
Species Account:	Pedicularis howellii profile for potential Species of Conservation Concern evaluation (2022)
Other:	USFS Potential Species of Conservation Concern Profile

CNPS Rare Plant Inventory