Vanilla (genus)

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File:Vanilla planifolia.jpeg (Vanilla planifolia) habitus]]

This genus of vine-like plants has a monopodial climbing habitus. They can form long thin stems with a length of more than 35 m, with alternate leaves spread along their length. The short, oblong, dark green leaves of Vanilla are thick and leathery, even fleshy in some species. But there are also a significant number of species that have their leaves reduced to scales or have become nearly or totally leafless and appear to use their green climbing stems for photosynthesis. Long and strong aerial roots grow from each node.

The racemose inflorescence's short-lived flowers arise successively on short peduncles from the leaf axils or scales. There may be up to 100 flowers on a single raceme, but usually no less than 20. The flowers are quite large and attractive with white, green, greenish yellow or cream colors. The flowers' sepals and petals are similar. The lip is tubular-shaped and surrounds the long, bristly column, opening up, as the bell of a trumpet, at its apex. The anther is at the top of the column and hangs over the stigma, separated by the rostellum. Most Vanilla flowers have a sweet scent.

Blooming occurs only when the flowers are fully grown. Each flower opens up in the morning and closes late in the afternoon on the same day, never to reopen. If pollination has not occurred meanwhile, it will be shed. The flowers are self-fertile, but need pollinators to perform this task. In the Neotropics, the flowers were historically presumed to be pollinated by stingless bees (e.g. Melipona) or hummingbirds, but this was never confirmed; the only actual documented pollination (i.e., producing seed set) is recorded for an orchid bee, Eulaema meriana, visiting Vanilla grandiflora in Peru,Lubinsky P, Van Dam M, Van Dam A (2006) Pollination of Vanilla and evolution in Orchidaceae. Lindleyana. 75:926–929 and pollinia of Vanilla species have been observed attached to other species of Eulaema in Panama,Ackerman, J.D. 1983. Specificity and mutual dependency of the orchid–euglossine bee interaction. Biological Journal of the Linnean Society 20:301–314 and pollinia of Vanilla pompona are carried by males of Eulaema cingulata in Peru.Watteyn, C., Scaccabarozzi, D., Muys, B., Van Der Schueren, N., Van Meerbeek, K., Guizar Amador, M. F., Ackerman, J. D., Cedeño Fonseca, M. V., Chinchilla Alvarado, I. F., Reubens, B., Pillco Huarcaya, R., Cozzolino, S., & Karremans, A. P. (2022). Trick or treat? Pollinator attraction in Vanilla pompona (Orchidaceae). Biotropica 54: 268– 274. https://doi.org/10.1111/btp.13034 Hand pollination is the most reliable method in commercially grown vanilla. Vanilla plantations require trees for the orchids to climb and anchor by its roots.{{Cite book |url=https://books.google.com/books?id=Y4WkDAAAQBAJ&pg=656 |title=Botany: An Introduction To Plant Biology, 6th edition |last=Mauseth |first=James |publisher=Jones & Bartlett Learning |year=2016 |isbn=978-1284123586 |pages=656}}

The fruit is termed "vanilla bean", though true beans are fabaceous eudicots not at all closely related to orchids. Rather, the vanilla fruit is technically an elongate, fleshy and later dehiscent capsule 10–20 cm long. It ripens gradually for 8 to 9 months after flowering, eventually turning black in color and giving off a strong aroma. Each pod contains thousands of minute seeds, and both the pods and seeds within are used to create vanilla flavoring. Vanilla beans are harvested by hand from commercial orchards. Among the Malagasy, the native V. madagascariensis (known as vahinamalo from vahy amalona lit. 'eel vine') is an ingredient used in traditional aphrodisiacs.{{Cite journal|page=10|title=Les Vanilles succulentes de Madagascar|journal=Succulentes|date=May 2005|first=Lucile|last=Allorge|author-link=Lucile Allorge|language=fr|issue=2}}{{cite thesis |degree=PhD |last=Andriamihaja |first=Felambinintsoa Cathucia |title=Caractérisation des espèces aphylles du genre Vanilla endémiques de Madagascar en vue de leur conservation |date=15 July 2021 |url=https://theses.hal.science/tel-03426153 |publisher=Université de la Réunion|language=fr|page=126}}

Vanilla species are used as food plants by the larvae of some Lepidoptera species, such as the woolly bear moths Hypercompe eridanus and H. icasia. Off-season or when abandoned, they may serve as habitat for animals of open forest, e.g. on the Comoros for Robert Mertens's day gecko (Phelsuma robertmertensi).

== Selected species ==

{{see|List of Vanilla species}}

The taxonomy of the genus Vanilla is complex.{{Cite journal |last=Bory |first=Séverine |author2=Michel Grisoni |author3=Marie-France Duval |author4=Pascale Besse |date=July 21, 2007 |title=Biodiversity and preservation of vanilla: present state of knowledge |journal=Genetic Resources and Crop Evolution |publisher=Springer Netherlands |volume=55 |issue=4 |pages=551–571 |issn=1573-5109 |doi=10.1007/s10722-007-9260-3 |s2cid=34673230}}

This is a partial list of species or synonyms:

Image:Vanilla pompona (Botanischer Garten TU Darmstadt).jpg (Vanilla pompona)]]

• Vanilla albida
• Vanilla andamanica
• Vanilla andina
• Vanilla aphylla Blume – Leafless vanilla
• Vanilla atropogon
• Vanilla bahiana
• Vanilla barbellata – Small bearded vanilla, wormvine orchid, "leafless vanilla"
• Vanilla chamissonis Klotzsch – Chamisso's vanilla
• Vanilla claviculata – Green withe
• Vanilla dilloniana – Dillon's vanilla, "leafless vanilla"
• Vanilla edwallii – Edwall's vanilla
• Vanilla humblotii
• Vanilla imperialis
• Vanilla mexicana Mill. – Mexican vanilla
• Vanilla moonii
• Vanilla odorata C.Presl
• Vanilla phaeantha – Leafy vanilla
• Vanilla phalaenopsis Vanille Sauvage (leafless succulent)
• Vanilla pilifera Holttum
• Vanilla planifolia Andrews – Flat-leaved vanilla, Tahitian vanilla, "West Indian vanilla"
• Vanilla poitaei – Poiteau's vanilla
• Vanilla polylepis
• Vanilla pompona Schiede – Pompona vanilla, Guadeloupe vanilla, "West Indian vanilla"
• Vanilla raabii
• Vanilla roscheri
• Vanilla shenzhenica
• Vanilla siamensis – Thai vanilla
• Vanilla somae
• Vanilla walkeriae{{cite web |url=http://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?12636 |title=GRIN Species Records of Vanilla |work=Germplasm Resources Information Network |publisher=United States Department of Agriculture |access-date=2011-03-02 |archive-url=https://web.archive.org/web/20150924095551/http://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?12636 |archive-date=2015-09-24 |url-status=dead}}
• Vanilla × tahitensis

{{Main|Vanilla}} {{See also|Vanilla extract}}

Regarded as the world's most popular aroma and flavor,{{cite book |author=Rain, Patricia |title=Vanilla: The Cultural History of the World's Most Popular Flavor and Fragrance |isbn=9781585423637 |publisher=Tarcher |year=2004|url-access=registration |url=https://archive.org/details/vanillaculturalh00rain}} vanilla contains the phenolic aldehyde, vanillin, as well as anisaldehyde, together accounting for its predominant sensory characteristics. Vanilla is a widely used aroma and flavor compound for foods, beverages and cosmetics, as indicated by its popularity as an ice cream flavor.{{cite web |url=http://www.idfa.org/news-views/news-releases/article/2013/07/23/vanilla-remains-top-ice-cream-flavor-with-americans |title=Vanilla remains top ice cream flavor with Americans |publisher=International Dairy Foods Association, Washington, DC |date=23 July 2013|access-date=29 August 2016}}

{{Reflist|2}}

{{Commons|Vanilla}}

{{Wikispecies|Vanilla}}

• [http://apps.kew.org/wcsp/qsearch.do?plantName=Vanilla&page=quickSearch World Checklist of Vanilla at Kew]

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Category:Vanilleae

Category:Vanilloideae genera

Category:Vines

Category:Extant Albian first appearances

Category:Early Cretaceous life of Africa

Category:Early Cretaceous life of Asia

Category:Early Cretaceous life of North America

Category:Early Cretaceous life of South America