Lilium philadelphicum

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Wood lily
Lilium philadelphicum var. philadelphicum.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Liliales
Family: Liliaceae
Genus: Lilium
Species: L. philadelphicum
Binomial name
Lilium philadelphicum

Lilium philadelphicum, also known as the wood lily, Philadelphia lily, prairie lily or western red lily, is a perennial species of lily native to North America. It is widely distributed across North America, found in all Canadian provinces except the Maritimes, as well as in most eastern and central states.[1]


This lily grows to a height of approximately 30 to 90 centimeters, and produces red or orange blooms between June and August.[2]

A variant of the species, the western red lily (L. philadelphicum andinum) was designated Saskatchewan's floral emblem in 1941.[3][4] It is featured on the flag of Saskatchewan.


The wood lily is listed as endangered in Maryland, New Mexico, Tennessee and North Carolina.[1][5] Its status is "threatened" in Kentucky and Ohio.[1] In Saskatchewan, the flower is protected under the Provincial Emblems and Honours Act, meaning it cannot be picked, uprooted or destroyed in any way.[3]


  1. ^ a b c "PLANTS Profile for lilium Philadelphicum". USDA. Retrieved 2008-07-09. 
  2. ^ "Plant detail: Lilium philadelphicum". Evergreen. 2008. Retrieved 2008-07-09. 
  3. ^ a b "Government House Gardens Showcase Western Red Lily". Government of Saskatchewan. 2005-07-21. Retrieved 2008-07-09. 
  4. ^ "Saskatchewan's Provincial Flower". Government of Saskatchewan. Retrieved 2008-07-09. 
  5. ^ "Endangered Plants of North Carolina". North Carolina Natural. February 2000. Retrieved 2008-07-09.