Taxon Report

Lilium pardalinum Kell. ssp. pitkinense (Beane & Vollmer) M. Skinner

Pitkin Marsh lily

Print Report

Taxon Summary

Lilium pardalinum ssp. pitkinense, commonly known as Pitkin Marsh lily, is a perennial bulbiferous herb in the Liliaceae that is found only in California. It occurs within Cismontane woodland, Marshes and swamps (freshwater), and Meadows and seeps, growing at elevations from 35 to 65 meters. Lilium pardalinum ssp. pitkinense is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Lilium pardalinum Kell. ssp. pitkinense (Beane & Vollmer) M. Skinner
Common Name:	Pitkin Marsh lily
Family:	Liliaceae
Element Code:	PMLIL1A0H3
USDA Plants Symbol:	LIPAP5
Synonyms/Other Names:	Lilium pitkinense Beane & Vollmer

Ecology and Life History


Lifeform:	perennial bulbiferous herb
Blooming Period: Jun-Jul	Jun-Jul
Elevation:	35-65 (115-215)
General Habitats:	Cismontane woodland, Marshes and swamps, Meadows and seeps
Microhabitat:	Mesic, Sandy
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G5T1
State Rank:	S1
State List:	CE
Fed List:	FE
Other Status:	SB_BerrySB; SB_CalBG/RSABG; SB_USDA
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	4
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	2
Fair (C)	0
Poor (D)	0
None (X)	1
Unknown (U)	1

Location


California Endemic: True
California Counties and Islands: Name (Code)
Sonoma (SON)
Quads: Name (Quad Code)
Petaluma (3812226), Petaluma River (3812225), Sebastopol (3812247), Two Rock (3812237)

Threat List Data from the CNDDB


Threat List Total:	9
EOs with Threat Listed:	Total EOs	% of EOs
	4	100 %
Non-native plant impacts	2	50%
Other	2	50%
Over-collecting/poaching	2	50%
Surface water diversion	1	25%
Development	1	25%
Erosion/runoff	1	25%
Feral pigs	1	25%
Grazing	1	25%
Groundwater pumping	1	25%

Notes



Known only from near Sebastopol. Most of marsh habitat has been destroyed; also threatened by horticultural collecting, hydrological alterations, and competition from other plants. Potentially threatened by hybridization with otherL. pardalinum subspecies. See Novon 12(2):253-261 (2002) for revised nomenclature.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 October 2025].