Lilium regale

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Lilium regale
Lilium regale (02).JPG
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Liliales
Family: Liliaceae
Genus: Lilium
Species: L. regale
Binomial name
Lilium regale
  • Lilium myriophyllum E.H. Wilson 1905, illegitimate homonym not Franch. 1892
Detail of flower

Lilium regale, called the regal lily,[3] royal lily[4] or king's lily,[5] is Chinese species of plants in the lily family, with trumpet-shaped flowers. It is native to the western part of Sichuan Province in southwestern China[6][1] and cultivated elsewhere as an ornamental. It was introduced to England in 1903 by Ernest Henry Wilson.[7][8]

Lilium regale is a long-lived, stem-rooting bulbous plant. The leaves are borne at irregular intervals on the stem. Plants grow up to 2 meters high, though 1.2 to 1.5 meters is more common in the garden. The flowers are 14 cm long, funnel or trumpet shaped, white with yellow throat, flushed purple outside. Stamens are prominent. The flowers are strongly fragrant, especially at night.[1]


The Royal Horticultural Society has given Lilium regale its Award of Garden Merit.[9] It is among the easiest lilies to grow in most temperate climate gardens. It tolerates most soils, except ones prone to waterlogging. It may naturalise in suitable conditions. It can also be grown in large containers. The bulbs themselves are very hardy, but the shoots appear early in the season and may be damaged by frost. Plants can be raised from seed, and often flower in their second year. The main pest is the Scarlet Lily Beetle, the larvae of which may cause complete defoliation. Stems may require staking to support the large blooms.[5][10]



Lilium regale, like many in the genus, is toxic to cats, with ingestion causing potentially fatal renal failure.[11] Households that are visited by cats are advised against keeping this plant or placing dried flowers where a cat may brush against them and thus become dusted with pollen, which is then consumed during cleaning.[12] Suspected cases require urgent veterinary attention.[13] Rapid treatment with activated charcoal and/or induced vomiting can reduce the amount of toxin absorbed, and large amounts of fluid by IV can reduce damage to kidneys to increase the chances of survival.[13]


  1. ^ a b c Flora of China, Vol. 24 Page 147 岷江百合 min jiang bai he Lilium regale E. H. Wilson, Gard. Chron. ser. 3, 53: 416. 1913.
  2. ^ Tropicos, search for Lilium myriophyllum
  3. ^ "Lilium regale". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 25 January 2016. 
  4. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-02-25. Retrieved 2014-10-17. 
  5. ^ a b Royal Horticultural Society, Lilium regale (IXb/a) king's lily
  6. ^ Kew World Checklist of Selected Plant Families
  7. ^ Wilson, Ernest Henry 1905. Flora et Silva 3: 330, plate 1, as Lilium myriophyllum
  8. ^ Wilson, Ernest Henry. 1913. Lilium regale. Gardeners' Chronicle: a weekly illustrated journal of horticulture and allied subjects. ser. 3 53: 416 description and commentary in English; photograph of flowering specimen
  9. ^ RHS "RHS Plant Selector - Lilium regale" Check |url= value (help). Retrieved 21 May 2013. 
  10. ^ Dave's Garden plant files, Regal Lily, Lilium regale
  11. ^ Fitzgerald, K.T. (2010). "Lily toxicity in the cat". Topics in Companion Animal Medicine 25 (4): 213–217. doi:10.1053/j.tcam.2010.09.006. PMID 21147474. 
  12. ^ The Valentine bouquet that killed my cats: Mother's Day warning on lethal lilies Daily Mail.
  13. ^ a b Lily Poisoning in Cats. Pet MD.