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''Washingtonia robusta'', known by common name as the Mexican fan palm, Mexican washingtonia, or skyduster is a palm tree native to the Baja California peninsula and a small part of
Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Federal Entities of Mexico. The state is divided into 72 municipalities; the ...
in northwestern
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
. Despite its limited native distribution, ''W. robusta'' one of the most widely cultivated
subtropical The subtropical zones or subtropics are geographical and climate zones to the north and south of the tropics. Geographically part of the temperate zones of both hemispheres, they cover the middle latitudes from to approximately 35° north and ...
palms in the world. It is naturalized in
Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to th ...
, California,
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,
Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by b ...
, parts of the Canary Islands, France, Italy,
Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...
,
Jordan Jordan ( ar, الأردن; tr. ' ), officially the Hashemite Kingdom of Jordan,; tr. ' is a country in Western Asia. It is situated at the crossroads of Asia, Africa, and Europe, within the Levant region, on the East Bank of the Jordan Rive ...
,
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,
Qatar Qatar (, ; ar, قطر, Qaṭar ; local vernacular pronunciation: ), officially the State of Qatar,) is a country in Western Asia. It occupies the Qatar Peninsula on the northeastern coast of the Arabian Peninsula in the Middle East; it s ...
,
Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...
,
Réunion Réunion (; french: La Réunion, ; previously ''Île Bourbon''; rcf, label= Reunionese Creole, La Rényon) is an island in the Indian Ocean that is an overseas department and region of France. It is located approximately east of the island o ...
, and
Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to ...
.


Description

''W. robusta'' grows to tall, rarely up to . The
leaves A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, ste ...
have a petiole up to long, and a palmate fan of leaflets up to long. The
inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on ...
is up to long, with numerous small, pale orange-pink
flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanis ...
s. The
fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particul ...
is a spherical, blue-black
drupe In botany, a drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pit'', ''stone'', or ''pyrena'') of hardened endocarp with a seed (''kernel'') ...
, diameter; it is edible, though thin-fleshed.


Taxonomy

It is one of two species in the genus ''
Washingtonia ''Washingtonia'' is a genus of palms, native to the southwestern United States (in southern California, and southwest Arizona) and northwest Mexico (in Baja California and Sonora). Both ''Washingtonia'' species are commonly cultivated across t ...
''. The other is the close relative ''
Washingtonia filifera ''Washingtonia filifera'', the desert fan palm, California fan palm, or California palm,Flora of North America Association. ''Flora of North America: North of Mexico Volume 22: Magnoliophyta: Alismatidae, Arecidae, Commelinidae (in Part), and Zi ...
,'' which occupies a more northerly distribution. Compared with ''W. robusta'', ''W. filifera'' has a thicker trunk and dull green leaves.


Nomenclature

*
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
: ''Mexican fan palm, Mexican washingtonia, skyduster'' *
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
: ''abanico,'' ''palma colorado, palma real, palma blanca, palma negra'' * Seri: ''Zamij ctam''


Distribution

This palm is native to the Baja California peninsula and Sonora. On the peninsula, it occurs from the Sierra de La Asamblea and the
Baja California Desert The Baja California Desert ( es, Desierto de Baja California) is a desert ecoregion of Mexico's Baja California Peninsula. This ecoregion occupies the western portion of the Baja California peninsula, and occupies most of the Mexican states of B ...
south into the Vizcaino region and the
Sierra de La Giganta The Sierra de la Giganta is a mountain range of eastern Baja California Sur state, located on the southern Baja California Peninsula in northwestern Mexico. It is a mountain range of the Peninsular Ranges System, which extends from Southern Cal ...
, and into the southern cape. In
Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Federal Entities of Mexico. The state is divided into 72 municipalities; the ...
, it occurs in canyons in the western half of the state, particularly in the palm oases of the Sierra El Aguaje north of
Guaymas Guaymas () is a city in Guaymas Municipality, in the southwest part of the state of Sonora, in northwestern Mexico. The city is south of the state capital of Hermosillo, and from the U.S. border. The municipality is located on the Gulf of Calif ...
. It is relatively restricted, and is suspected to be a
relict A relict is a surviving remnant of a natural phenomenon. Biology A relict (or relic) is an organism that at an earlier time was abundant in a large area but now occurs at only one or a few small areas. Geology and geomorphology In geology, a r ...
population in Sonora. It has the least number of plants in the palm oases that are shared with two other more numerous species, ''Brahea brandegeei'' and '' Sabal uresana''.


Cultivation

Like the closely related ''
Washingtonia filifera ''Washingtonia filifera'', the desert fan palm, California fan palm, or California palm,Flora of North America Association. ''Flora of North America: North of Mexico Volume 22: Magnoliophyta: Alismatidae, Arecidae, Commelinidae (in Part), and Zi ...
'' (California fan palm), it is grown as an
ornamental tree Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that ...
. Although very similar, the Mexican washingtonia has a narrower trunk (which is typically somewhat wider at the base), and grows slightly faster and taller; it is also somewhat less cold hardy than the California fan palm, hardy to about . Field research conducted on ''W. robusta'' in its native habitat on the Baja California peninsula concluded that its potential longevity may exceed 500 years. Supporting research by Barry Tomlinson and Brett Huggett states that there is "evidence for extreme longevity of metabolically functioning cells of considerable diversity in palm stems." Many of the iconic "sky dusters" of Los Angeles that have survived the chainsaws of progress are documented in photography from the 19th century. The Mexican fan palm is normally grown in the desert
Southwestern United States The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural region of the United States that generally includes Arizona, New Mexico, and adjacent portions of California, Colorado, ...
, in areas such as California, Arizona,
southern Nevada Southern Nevada (SNV) is a region and the southern portion of the U.S. state of Nevada which includes the Las Vegas Valley. It also includes the areas in and around Pahrump and Pioche. Tonopah and Hawthorne are sometimes also referred to as par ...
, extreme southwestern
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
and
Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by b ...
. It also cultivated in the coastal areas of South Atlantic states and the Gulf Coast, including extreme southern
North Carolina North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and S ...
, coastal
South Carolina )'' Animis opibusque parati'' ( for, , Latin, Prepared in mind and resources, links=no) , anthem = " Carolina";" South Carolina On My Mind" , Former = Province of South Carolina , seat = Columbia , LargestCity = Charleston , LargestMetro = ...
, southern
Georgia Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to the ...
, and
Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to th ...
. Along the Gulf Coast, Mexican fan palms can be found growing along the Florida west coast westward to
South Texas South Texas is a region of the U.S. state of Texas that lies roughly south of—and includes—San Antonio. The southern and western boundary is the Rio Grande, and to the east it is the Gulf of Mexico. The population of this region is about 4.96 ...
. ''
Washingtonia × filibusta ''Washingtonia'' × ''filibusta'' is a hybrid of the species ''Washingtonia filifera'' and ''Washingtonia robusta''. Stores do not sell purebreds, they sell the hybrid only. The hybrid does not look too different from the purebred, but is more h ...
'' is a
hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two dif ...
of ''W. robusta'' and ''W. filifera'', and has intermediate characteristics of the two parents, especially greater tolerance of wet cold.


Gallery

Image:Flowering_Mexican_Date_Palm.jpg, Flowering palm in
Chandler, Arizona Chandler is a city in Maricopa County, Arizona, United States, and a suburb in the Phoenix-Mesa-Chandler Metropolitan Statistical Area (MSA). It is bordered to the north and west by Tempe, to the north by Mesa, to the west by Phoenix, to the ...
Image:Washingtoniainfructescence.JPG, Infructescence Image:Robustaflowers.JPG, Inflorescence Image:Asupalms.jpg,
Arizona State University Arizona State University (Arizona State or ASU) is a public research university in the Phoenix metropolitan area. Founded in 1885 by the 13th Arizona Territorial Legislature, ASU is one of the largest public universities by enrollment in the U ...
's Palm Walk Image:Robustabeach.JPG, Species in
Venice Beach, California Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 bridges. The islan ...
File:WashingtoniaRobustaGeorgia.png, Washingtonia Robusta growing in Saint Simons Island Georgia. Image:Palm Trees in San Jose California.jpg, ''Washingtonia robusta'' and
Canary Island date palm ''Phoenix canariensis'', the Canary Island date palm or pineapple palm, is a species of flowering plant in the palm family Arecaceae, native to the Canary Islands off the coast of Morocco. It is a relative of ''Phoenix dactylifera'', the true da ...
s are commonly seen lining many streets throughout
San Jose, California San Jose, officially San José (; ; ), is a major city in the U.S. state of California that is the cultural, financial, and political center of Silicon Valley and largest city in Northern California by both population and area. With a 2020 popu ...
. Image:Los Angeles, Koreatown, Palm Trees.jpg, Palm trees lined up at S. Occidental Blvd between
Koreatown A Koreatown (Korean: 코리아타운), also known as a Little Korea or Little Seoul, is a Korean-dominated ethnic enclave within a city or metropolitan area outside the Korean Peninsula. History Koreatowns as an East Asian ethnic enclave have o ...
and Westlake of Los Angeles, California Image:Hotel De Anza San Jose Palms.jpg, Species line Santa Clara Street in
San Jose, California San Jose, officially San José (; ; ), is a major city in the U.S. state of California that is the cultural, financial, and political center of Silicon Valley and largest city in Northern California by both population and area. With a 2020 popu ...
Image:Los Angeles Washingtonia Robusta.jpg, Oldest palms in
Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world' ...
, planted'' circa'' 1875 Image:Enterprise Mexican Palm.jpg, A Mexican fan palm tree in
Enterprise, Alabama Enterprise is a city in the southeastern part of Coffee County and the southwestern part of Dale County in Southeastern Alabama, United States. Its population was 28,711 at the 2020 census. Enterprise is the primary city of the Enterprise micr ...


References


External links


Flora of North America Vol. 22 Page 106 Mexican fan palm, palmier évantail du Mexique ''Washingtonia robusta'' H. Wendland, Garten-Zeitum (Berlin). 2: 198. 1883.
{{Taxonbar, from=Q1096456
Robusta ROBUSTA (Radiation on Bipolar for University Satellite Test Application) is a nano-satellite scientific experiment developed by the University of Montpellier students as part of a Centre National d'Études Spatiales (CNES) call for student project ...
Plants described in 1883 Trees of Sonora Trees of Baja California Sur North American desert flora Trees of Mediterranean climate Ornamental trees