Lily-of-the-valley

Lily of the valley (''Convallaria majalis'' ), sometimes written lily-of-the-valley, is a woodland flowering plant with sweetly scented, pendent, bell-shaped white flowers borne in sprays in spring. It is native throughout the cool temperate Northern Hemisphere in Asia and Europe. ''Convallaria majalis'' var. ''montana'', also known as the American lily of the valley, is native to North America.

Due to the concentration of cardiac glycosides (cardenolides), it is highly poisonous if consumed by humans or other animals.

Other names include May bells, Our Lady's tears, and Mary's tears. Its French name, ''muguet'', sometimes appears in the names of perfumes imitating the flower's scent. In pre-modern England, the plant was known as glovewort (as it was a wort used to create a salve for sore hands), or Apollinaris (according to a legend that it was discovered by Apollo).

Description

''Convallaria majalis'' is a herbaceous perennial plant that often forms extensive colonies by spreading underground stems called rhizomes. New upright shoots are formed at the ends of stolons in summer, these upright dormant stems are often called pips. These grow in the spring into new leafy shoots that still remain connected to the other shoots under ground. The stems grow to tall, with one or two leaves long; flowering stems have two leaves and a raceme of five to fifteen flowers on the stem apex.

The flowers have six white tepals (rarely pink), fused at the base to form a bell shape, diameter, and sweetly scented; flowering is in late spring, in mild winters in the Northern Hemisphere it is in early March. The fruit is a small orange-red berry diameter that contains an average of 3.9 large whitish to brownish colored seeds that dry to a clear translucent round bead wide. Fruits persist for an average of 47.5 days. Fruits average 85.8% water, and their dry weight includes 14.6% carbohydrates and 1.3% lipids. Plants are self-incompatible, and colonies consisting of a single clone do not set seed.

Taxonomy

In the APG III system, the genus is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae). It was formerly placed in its own family Convallariaceae, and, like many lilioid monocots, before that in the lily family Liliaceae.

There are three varieties that have sometimes been separated out as distinct species or subspecies by some botanists.
* ''Convallaria majalis'' var. ''keiskei'' – from China and Japan, with red fruit and bowl-shaped flowers (now widely cited as ''Convallaria keiskei'')
* ''C. majalis'' var. ''majalis'' – from Eurasia, with white midribs on the flowers
* ''C. majalis'' var. ''montana'' – from the United States, maybe with green-tinted midribs on the flowers

''Convallaria transcaucasica'' is recognised as a distinct species by some authorities, while the species formerly called ''Convallaria japonica'' is now classified as '' Ophiopogon japonicus''.

Distribution

''Convallaria majalis'' is a native of Europe, where it largely avoids the Mediterranean and Atlantic margins. An eastern variety, ''C. majalis'' var. ''keiskei'', occurs in Japan and parts of eastern Asia. A limited native population of ''C. majalis'' var. ''montana'' (synonym ''C. majuscula'') occurs in the Eastern United States. There is, however, some debate as to the native status of the American variety.

Like many perennial flowering plants, ''C. majalis'' exhibits dual reproductive modes by producing offspring asexually by vegetative means and sexually by seed, produced via the fusion of gametes.

Ecology

''Convallaria majalis'' is a plant of partial shade, and a mesophile type that prefers warm summers. It likes soils that are silty or sandy and acid to moderately alkaline, with preferably a plentiful amount of humus. The Royal Horticultural Society states that slightly alkaline soils are the most favored. It is a Euroasiatic and suboceanic species that lives in mountains up to in elevation.

''Convallaria majalis'' is used as a food plant by the larvae of some moth and butterfly (Lepidoptera) species including the grey chi. Adults and larvae of the leaf beetle '' Lilioceris merdigera'' are also able to tolerate the cardenolides and thus feed on the leaves.

The fruits are sometimes removed by graniviorous rodents, consuming most of the seeds but only a small proportion of the fruit's pulp. Their hoarding of both seeds and whole fruit has been observed. As some seeds inevitably escape predation, they also act as seed dispersers.

Cultivars

''Convallaria majalis'' is widely grown in gardens for its scented flowers and ground-covering abilities in shady locations. It has gained the Royal Horticultural Society's Award of Garden Merit. In favourable conditions it can form large colonies.

Various kinds and cultivars are grown, including those with double flowers, rose-colored flowers, variegated foliage and ones that grow larger than the typical species.
* ''C. majalis'' 'Albostriata' has white-striped leaves
* ''C. majalis'' 'Green Tapestry', 'Haldon Grange', 'Hardwick Hall', 'Hofheim', 'Marcel', 'Variegata' and 'Vic Pawlowski's Gold' are other variegated cultivars
* ''C. majalis'' 'Berlin Giant' and ''C. majalis'' 'Géant de Fortin' (syn. 'Fortin's Giant') are larger-growing cultivars
* ''C. majalis'' 'Flore Pleno' has double flowers.
* ''C. majalis'' 'Rosea' sometimes found under the name ''C. majalis'' var. ''rosea'', has pink flowers.

Traditionally, ''Convallaria majalis'' has been grown in pots and winter forced to provide flowers during the winter months, both in potted plants and as cut flowers.

Chemistry

Roughly 38 different cardiac glycosides (cardenolides) – which are highly toxic if consumed by humans or animals – occur in the plant, including:

The odor of lily of the valley, specifically the ligand bourgeonal, was once thought to attract mammalian sperm. The 2003 discovery of this phenomenon prompted research into odor reception, but a 2012 study demonstrated instead that at high concentrations, bourgeonal imitated the role of progesterone in stimulating sperm to swim (chemotaxis), a process unrelated to odor reception.

Toxicology

All parts of the plant are potentially poisonous, including the red berries which may be attractive to children. If ingested, the plant can cause abdominal pain, nausea, vomiting, and irregular heartbeats.

Uses

Perfume

In 1956, the French firm Dior produced a fragrance simulating lily of the valley, which was Christian Dior's favorite flower. Diorissimo was designed by Edmond Roudnitska."Lily of the Valley Perfumes"
''Vogue'' slideshow. Although it has since been reformulated, it is considered a classic. Because no natural aromatic extract can be produced from lily of the valley, its scent must be recreated synthetically; while Diorissimo originally achieved this with hydroxycitronellal, the European Chemicals Agency now considers it a skin sensitizer and its use has been restricted.

Other perfumes imitating or based on the flower include Henri Robert's Muguet de Bois (1936), Penhaligon's Lily of the Valley (1976), and Olivia Giacobetti's En Passant (2000).

Weddings and other celebrations

Lily of the valley has been used in weddings and off-season can be very expensive. Lily of the valley was featured in the bridal bouquet at the wedding of Prince William and Catherine Middleton. Lily of the valley was also the flower chosen by Princess Grace of Monaco to be featured in her bridal bouquet.

At the beginning of the 20th century, it became tradition in France to sell lily of the valley on international Labour Day, 1 May (also called ''La Fête du Muguet'' or Lily of the Valley Day) by labour organisations and private persons without paying sales tax (on that day only) as a symbol of spring.

Lily of the valley is worn in Helston (Cornwall, UK) on Flora Day (8 May each year, see Furry Dance) representing the coming of "the May-o" and the summer. There is also a song sung in pubs around Cornwall (and on Flora Day in Cadgwith, near Helston) called "Lily of the Valley"; the song, strangely, came from the Jubilee Singers from Fisk University in Nashville, Tennessee.

Folk medicine

The plant has been used in folk medicine for centuries. There is a reference to "Lilly of the valley water" in Robert Louis Stevenson's 1886 novel '' Kidnapped'', where it is said to be "good against the Gout", and that it "comforts the heart and strengthens the memory" and "restores speech to those that have the dumb palsey". There is no scientific evidence that lily of the valley has any effective medicinal uses for treating human diseases.

Cultural symbolism

The lily of the valley was the national flower of Yugoslavia, and it also became the national flower of Finland in 1967.

In the "language of flowers", the lily of the valley signifies the return of happiness.

Myths and religion

The name "lily of the valley", like its correspondences in some other European languages, is apparently a reference to the phrase "lily of the valleys" (sometimes also translated as "lily of the valley") in Song of Songs 2:1 (). European herbalists' use of the phrase to refer to a specific plant species seems to have appeared relatively late in the 16th or 15th century.Keil, Gundolf. „Es hat vnser libe fraw gesprochen in dem puch der libe: ‚Ich pin ein plvm des tals vnd auch des grvnen waldes'": Die Einführung der Convallarin-Glykoside als Hinweis auf mährisch-schlesische Provenienz. In: Iva Kratochvilová, Lenka Vaňková (Hrsg.): ''Germanistik im Spiegel der Generationen. Festschrift Zdeněk Masařík.'' Opava/ Ostrava 2004, S. 72–132. The Neo-Latin term ''convallaria'' (coined by Carl Linnaeus) and, for example, the Swedish name ' derives from the corresponding phrase ''lilium convallium'' in the Vulgate.

In culture

* The flower is the theme of a poem by Paul Laurence Dunbar.
* Tchaikovsky wrote the poem "Lilies of the Valley" (Ландыши) in December 1878 while in Florence.
* In Anton Chekhov's 1898 short story " A Doctor's Visit", drops of convallaria are mentioned as medicine.
* "Lilies-of-the-Valley" is a 1916 Marc Chagall painting,
* The eponymous song by English rock band Queen.
* " Face Off", the finale of the fourth season of the television series ''Breaking Bad,'' includes lily of the valley's use as a poison.
* In the third episode of Outlander, children are revealed to have been dying after confusing Lily of the Valley for garlic and eating it.
* In 2022, lily of the valley, reputedly Queen Elizabeth II's favourite flower, was the theme of the poem "Floral Tribute" by the Poet Laureate Simon Armitage, written in memory of the Queen and published in the week after her death.

Gallery

File:Convallaria-oliv-r2.jpg, Convallaria close-up
File:Convallaria majalis Kemi, Finland 02.06.2013.jpg, Convallarias in Kemi in early June
File:Stamp of Moldova 429.gif, Moldovan stamp
File:Pennä reverse Anu 1990.jpg, Finnish 10 penny coin with the Convallaria engraving
File:1 of May, 1851.jpg, 1 May, by Franz Xaver Winterhalter
File:Lunner komm.svg, Lunner (Norway) municipal coat of arms

See also

* List of plants known as lily

References

Bibliography

*
*

External links

Invasive Plant Atlas
– US Distribution Map

''Convallaria majalis'' fact sheet
– NC Cooperative Extension

{{Authority control

Flora of Europe
Flora of temperate Asia
Flora of the Southeastern United States
Flora of Myanmar
Flora of West Virginia
Garden plants of Asia
Garden plants of Europe
Garden plants of North America
Medicinal plants
Nolinoideae
Plants described in 1753
Taxa named by Carl Linnaeus