Taxon Report

Pedicularis rigginsiae D.J. Keil

Arroyo de la Cruz lousewort

Print Report

Classification


Scientific Name:	Pedicularis rigginsiae D.J. Keil
Common Name:	Arroyo de la Cruz lousewort
Family:	Orobanchaceae
Element Code:	PDSCR1K170
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb (hemiparasitic)
Blooming Period: Jan-May	Jan-May
Elevation:	100-155 (330-510)
General Habitats:	Chaparral
Microhabitat:	Clay
Microhabitat Details:	Ultramafic (highly weathered)

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	added to 1B.1 on 2021-02-17

Occurrence Data from the CNDDB


Total Occurrences:	3
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	1
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	2

Location


California Endemic: True
California Counties and Islands: Name (Code)
San Luis Obispo (SLO)
Quads: Name (Quad Code)
Piedras Blancas (3512163), San Simeon (3512162)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	1	33 %
Wood cutting or brush clearing	1	33%

Notes




Threats:
Threatened by low population numbers. Potentially threatened by ranching activities and development.
Taxonomy:
Previously included in Pedicularis dudleyi.

Selected References

CRPR List Addition on 2021-02-17

Phytoneuron 2019-2: 1–8 (2019)

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].