Taxon Report

Lilium parryi Wats.

lemon lily

Print Report


© 2009 Thomas Stoughton

Taxon Summary

Lilium parryi, commonly known as lemon lily, is a perennial bulbiferous herb in the Liliaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, Meadows and seeps, Riparian forest, and Upper montane coniferous forest, growing at elevations from 1220 to 2745 meters. Lilium parryi is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.


  Classification

Scientific Name:
Lilium parryi Wats.
Common Name:
lemon lily
Family: Liliaceae
Element Code: PMLIL1A0J0
USDA Plants Symbol: LIPA2
Synonyms/Other Names:
  • Lilium parryi Wats. var. kessleri A. Davids.

Ecology and Life History

Lifeform: perennial bulbiferous herb
Blooming Period: Jul-Aug Jul-Aug
Elevation: 1220-2745 (4005-9005)
General Habitats: Lower montane coniferous forest, Meadows and seeps, Riparian forest, Upper montane coniferous forest
Microhabitat: Mesic
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 160
Element Occurrence Ranks:
   Excellent (A) 8
   Good (B) 26
   Fair (C) 7
   Poor (D) 4
   None (X) 4
   Unknown (U) 111
California Endemic:  False
California Counties and Islands: Name (Code)
Los Angeles (LAX), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)
Quads: Name (Quad Code)
Big Bear Lake (3411628), Boucher Hill (3311638)*, Butler Peak (3411731), Crystal Lake (3411737), Cucamonga Peak (3411725), Cuyamaca Peak (3211685)*, Devore (3411724), Fawnskin (3411638), Forest Falls (3411618), Idyllwild (3311666), Julian (3311615), Juniper Hills (3411748), Keller Peak (3411721), Lake Arrowhead (3411732), Lake Fulmor (3311677), Moonridge (3411627), Mount San Antonio (3411736), Mt. Baldy (3411726), Onyx Peak (3411626), Pacifico Mountain (3411841), Palm Springs (3311675), San Gorgonio Mtn. (3411617), San Jacinto Peak (3311676), Sitton Peak (3311754), Telegraph Peak (3411735), Toro Peak (3311654), Tule Springs (3211686), Waterman Mtn. (3411738), Wildomar (3311753)

Threat List Data from the CNDDB

Threat List Total: 16
EOs with Threat Listed: Total EOs % of EOs
62 39 %
Foot traffic/trampling 28 17%
Recreational use (non-ORV) 19 11%
Road/trail construction/maint. 19 11%
Over-collecting/poaching 17 10%
Other 12 7%
Vandalism/dumping/litter 7 4%
Erosion/runoff 6 3%
Wood cutting or brush clearing 4 2%
Surface water diversion 3 1%
Grazing 3 1%
Improper burning regime 2 1%
Non-native plant impacts 2 1%
Development 2 1%
Altered flood/tidal/hydrologic regime 1 0%
ORV activity 1 0%
Pollution 1 0%

Notes

Most occurrences in LAX Co. are very small. Nearly extirpated from SDG Co., where known from only a few plants at Palomar Mtn. SP. Threatened by horticultural collecting, water diversion, recreational activities, and grazing. Includes L. parryi var. kessleri. Angeles NF has adopted species management guidelines. See MadroƱo 40(4):270-271 (1993) for first Mexico record and distributional information.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].