Lilium philadelphicum - L.
Wood Lily
Other English Common Names: Red Lily, Red Wood Lily
Other Common Names: wood lily
Taxonomic Status: Accepted
Related ITIS Name(s): Lilium philadelphicum L. (TSN 503459)
French Common Names: lis de Philadelphie
Unique Identifier: ELEMENT_GLOBAL.2.129053
Element Code: PMLIL1A0L0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Lily Family
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Monocotyledoneae Liliales Liliaceae Lilium
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Concept Reference
Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Lilium philadelphicum
Taxonomic Comments: FNA (vol. 26, 2002) lumps subspecific taxa.
Conservation Status

NatureServe Status

Global Status: G5
Global Status Last Reviewed: 12Aug2015
Global Status Last Changed: 07Jun1984
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Nation: United States
National Status: N5
Nation: Canada
National Status: N5 (12Aug2015)

U.S. & Canada State/Province Status
United States Alabama (S1), Arizona (SU), Arkansas (SNR), Colorado (S3S4), Connecticut (SNR), Delaware (SX), District of Columbia (SH), Georgia (S1), Illinois (SNR), Indiana (SNR), Iowa (S4), Kentucky (S2S3), Maine (SNR), Maryland (SH), Massachusetts (SNR), Michigan (SNR), Minnesota (SNR), Missouri (SNR), Montana (S3?), Nebraska (S3), New Hampshire (SNR), New Jersey (SNR), New Mexico (S3?), New York (S4), North Carolina (S1), North Dakota (SNR), Ohio (S2), Pennsylvania (SNR), Rhode Island (SNR), South Dakota (SNR), Tennessee (S1), Texas (SNR), Vermont (S3), Virginia (S3), West Virginia (S2S3), Wisconsin (SNR), Wyoming (S2)
Canada Alberta (S5), British Columbia (SNR), Manitoba (S4), Northwest Territories (SNR), Ontario (S5), Quebec (S3S4), Saskatchewan (S3S4)

Other Statuses

NatureServe Global Conservation Status Factors

Other NatureServe Conservation Status Information

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AL, AR, AZ, CO, CT, DC, DEextirpated, GA, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NY, OH, PA, RI, SD, TN, TX, VA, VT, WI, WV, WY
Canada AB, BC, MB, NT, ON, QC, SK

Range Map
No map available.

U.S. Distribution by County Help
State County Name (FIPS Code)
KY Bath (21011), Carter (21043), Jackson (21109), Laurel (21125), McCreary (21147), Menifee (21165), Powell (21197)*, Pulaski (21199), Rockcastle (21203), Rowan (21205), Whitley (21235), Wolfe (21237)
MD Allegany (24001)*, Garrett (24023)*, Washington (24043)*
MT Lincoln (30053)
NE Antelope (31003), Blaine (31009), Cherry (31031), Holt (31089), Platte (31141), Rock (31149), Thomas (31171), Wheeler (31183)
NM Otero (35035)
OH Adams (39001), Henry (39069), Lucas (39095), Ottawa (39123)*, Portage (39133)*, Scioto (39145), Summit (39153)*, Wood (39173)*
TN Cumberland (47035), Fentress (47049), Grundy (47061)*, Hamilton (47065)*, Scott (47151), Van Buren (47175)
VT Chittenden (50007), Rutland (50021), Windham (50025)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
01 West (01080107)+
02 North Branch Potomac (02070002)+*, Conococheague-Opequon (02070004)+*
04 Lower Maumee (04100009)+, Cedar-Portage (04100010)+*, Sandusky (04100011)+*, Cuyahoga (04110002)+*, Mettawee River (04150401)+, Winooski River (04150403)+
05 Youghiogheny (05020006)+*, Tuscarawas (05040001)+*, Lower Scioto (05060002)+*, Little Scioto-Tygarts (05090103)+, Ohio Brush-Whiteoak (05090201)+, Licking (05100101)+, Upper Kentucky (05100204)+, Upper Cumberland (05130101)+, Rockcastle (05130102)+, Upper Cumberland-Lake Cumberland (05130103)+, South Fork Cumberland (05130104)+, Collins (05130107)+, Caney (05130108)+
06 Emory (06010208)+, Middle Tennessee-Chickamauga (06020001)+
10 Little White (10140203)+, Middle Niobrara (10150004)+, Snake (10150005)+, Lower Niobrara (10150007)+*, Upper North Loup (10210006)+, Loup (10210009)+, Upper Elkhorn (10220001)+, North Fork Elkhorn (10220002)+
13 Rio Penasco (13060010)+
17 Upper Kootenai (17010101)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
Technical Description: From CNHP Wetland Guide 2012: Growth Habit: Herbs, perennial, bulbose.
Bulbs: chunky, 1.6-2.9 × 2.2-4.7 cm, 0.6-1.1 times taller than long, 2(-4) years' growth visible; scales 1-2-segmented, longest 1.2-2.2 cm; stem roots present or absent.
Stems: to 1.2 m, glaucous.
Leaves: scattered, or mostly scattered with at least 1 distal whorl, or in 1-5 whorls or partial whorls, 3-11 leaves per whorl, ± horizontal and drooping at tips, or ascending in sun, 2.9-10.2 × 0.3-2.3 cm, 3.5-18 times longer than wide; blade narrowly elliptic, sometimes linear, elliptic, or oblanceolate, margins not undulate, apex acute or barely acuminate; veins and margins ± smooth abaxially.
Inflorescences: umbellate, 1-3(-6)-flowered.
Flowers: erect, not fragrant; perianth widely campanulate; sepals and petals somewhat recurved 1/4-2/5 along length from base, red-orange or red-magenta, sometimes pale orange, pure red, or rarely yellow, distinctly clawed, apex often widely acute, rarely obtuse, nectar guides above claws yellow to orange and spotted maroon, more pronounced on sepals; sepals not ridged abaxially, 4.9-8.2 × 1.6-2.6 cm; petals 4.5-7.7 × 2-3.2 cm; stamens strongly exserted; filaments ± parallel to style, barely spreading, diverging 0°-8° from axis, ± same color as sepals and petals; anthers dull maroon, 0.5-1.2 cm; pollen variously colored dark orange, brown, brown-yellow, or yellow; pistil 5-8 cm; ovary 1.3-3.2 cm; style ± same color as sepals and petals; pedicel 2.5-10.5 cm.
Fruits: Capsules 2.2-7.7 × 1-1.8 cm, 3-4.8 times longer than wide.

Diagnostic Characteristics: From CNHP Wetland Guide 2012: Main Characteristics:
·Tepals over 5 cm long, with maroon to blackish spots at base on the inside
·Leaves alternate with some leaves in whorls

Economic Attributes
Economically Important Genus: Y
Management Summary Not yet assessed
Population/Occurrence Delineation Not yet assessed
Population/Occurrence Viability
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

  • Barrell, J. 1969. Flora of the Gunnison Basin; Gunnison, Saguache and Hinsdale Counties, CO: A Study in the Distribution of Plants. Natural Land Institute, Rockford, IL.

  • Flora of North America Editorial Committee. 2002a. Flora of North America North of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.

  • Great Plains Flora Association. 1986. Flora of the Great Plains. University Press of Kansas, Lawrence, KS.

  • Harrington, H. D. 1954. Manual of the Plants of Colorado. Sage Books, Denver, CO.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Kettler, S. M., N. D. Lederer, D. Bacher, and S. Spackman. 1993. Final Report: Pike and San Isabel National Forests and Comanche and Cimarron National Grasslands, Plants of Special Concern. Colorado Natural Heritage Program, Fort Collins, CO.

  • Rocky Mountain Society of Botanical Artists. 2009. RARE Imperiled Plants of Colorado, a traveling art exhibition. Exhibition catalogue developed by the Denver Botanic Gardens and Steamboat Art Museum.

  • Spackman, S., B. Jennings, J. Coles, C. Dawson, M. Minton, A. Kratz, and C. Spurrier. 1997. Colorado rare plant field guide. Prepared for Bureau of Land Management, U.S. Forest Service and U.S. Fish and Wildlife Service by Colorado Natural Heritage Program.

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