''Vitex'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...
s in the sage
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Lamiaceae
The Lamiaceae ( )
or Labiatae are a family (biology), family of flowering plants commonly known as the mint, deadnettle, or sage family. Many of the plants are aromatic in all parts and include widely used culinary herbs like basil (herb), ba ...
. It has about 250
species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
.
[Raymond M. Harley, Sandy Atkins, Andrey L. Budantsev, Philip D. Cantino, Barry J. Conn, Renée J. Grayer, Madeline M. Harley, Rogier P.J. de Kok, Tatyana V. Krestovskaja, Ramón Morales, Alan J. Paton, and P. Olof Ryding. 2004. "Labiatae" pages 167-275. In: Klaus Kubitzki (editor) and Joachim W. Kadereit (volume editor). ''The Families and Genera of Vascular Plants'' volume VII. Springer-Verlag: Berlin; Heidelberg, Germany. ][''Vitex'' In: Index Nominum Genericorum. In: ]Regnum Vegetabile
The International Association for Plant Taxonomy (IAPT) is an organization established to promote an understanding of plant biodiversity, facilitate international communication of research between botanists, and oversee matters of uniformity and ...
(see ''External links'' below). Common names include chaste tree or chastetree, traditionally referring to ''
V. agnus-castus'', but often applied to other species, as well.
Species of ''Vitex'' are
native throughout the
tropics
The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...
and
subtropics
The subtropical zones or subtropics are geographical and climate zones immediately 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 ...
, with a few species in
temperate
In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of the Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ran ...
Eurasia
Eurasia ( , ) is a continental area on Earth, comprising all of Europe and Asia. According to some geographers, Physical geography, physiographically, Eurasia is a single supercontinent. The concept of Europe and Asia as distinct continents d ...
and one in New Zealand.
[Kew World Checklist of Selected Plant Families]
/ref>[David J. Mabberley. 2008. ''Mabberley's Plant-Book'' third edition (2008). Cambridge University Press: UK.]
About 18 species are known in cultivation. ''V. agnus-castus'' and '' Vitex negundo'' are often grown in temperate climates.[Anthony J. Huxley, Mark Griffiths, and Margot Levy (editors). 1992. ''The New Royal Horticultural Society Dictionary of Gardening.'' The Macmillan Press Limited, London; The Stockton Press, New York.] About six others are frequently grown in the tropics.[George W. Staples and Derral R. Herbst "A Tropical Garden Flora" Bishop Museum Press: Honolulu (2005)] Most of the cultivated species serve as ornamentals. Some provide valuable lumber
Lumber is wood that has been processed into uniform and useful sizes (dimensional lumber), including beams and planks or boards. Lumber is mainly used for construction framing, as well as finishing (floors, wall panels, window frames). ...
. The flexible limbs of some species are used in basket weaving
Basket weaving (also basketry or basket making) is the process of weaving or sewing pliable materials into three-dimensional artifacts, such as baskets, mats, mesh bags or even furniture. Craftspeople and artists specialized in making baskets ...
. Some of the aromatic
In organic chemistry, aromaticity is a chemical property describing the way in which a conjugated system, conjugated ring of unsaturated bonds, lone pairs, or empty orbitals exhibits a stabilization stronger than would be expected from conjugati ...
species are used medicinally or to repel mosquitos.
The genus ''Vitex'' was named by Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...
in ''Species Plantarum
' (Latin for "The Species of Plants") is a book by Carl Linnaeus, originally published in 1753, which lists every species of plant known at the time, classified into genus, genera. It is the first work to consistently apply binomial nomenclature ...
'' in 1753.[Carolus Linnaeus. 1753. ''Species Plantarum'' 2:706. Laurentii Salvii. (see ''External Links'' below).] ''Vitex'' was the name used by Pliny the Elder
Gaius Plinius Secundus (AD 23/24 79), known in English as Pliny the Elder ( ), was a Roman Empire, Roman author, Natural history, naturalist, and naval and army commander of the early Roman Empire, and a friend of the Roman emperor, emperor Vesp ...
for ''V. agnus-castus''. It is derived from the Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
''vieo'', meaning to weave or to tie up, a reference to the use of ''V. agnus-castus'' in basketry.[Umberto Quattrocchi. 2000. ''CRC World Dictionary of Plant Names'' volume I, page 91. CRC Press: Boca Raton; New York; Washington, DC;, US. London, UK. (set). (see ''External links'' below).]
As a result of phylogenetic
In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical dat ...
studies of DNA sequence
A nucleic acid sequence is a succession of bases within the nucleotides forming alleles within a DNA (using GACT) or RNA (GACU) molecule. This succession is denoted by a series of a set of five different letters that indicate the order of the nu ...
s, ''Vitex'' is one of several genera that were transferred from the Verbenaceae
The Verbenaceae ( ), the verbena family or vervain family, is a family of mainly tropical flowering plants. It contains trees, shrubs, and herbs notable for heads, spikes, or clusters of small flowers, many of which have an aromatic smell.
T ...
to the Lamiaceae in the 1990s. It is the largest genus in the subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ...
Viticoideae of Lamiaceae
The Lamiaceae ( )
or Labiatae are a family (biology), family of flowering plants commonly known as the mint, deadnettle, or sage family. Many of the plants are aromatic in all parts and include widely used culinary herbs like basil (herb), ba ...
. Taxon
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ...
sampling in molecular phylogenetic studies has never been sufficient to test the monophyly
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria:
# the grouping contains its own most recent comm ...
of the Viticoideae, but it is generally thought to be an unnatural group.[Systematics of Lamiaceae Subfamily Viticoideae. At: Website of Kew Gardens. (see ''External links'' below).] The subfamily is probably diphyletic, with '' Premna'', '' Gmelina'', and '' Cornutia'' constituting one clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ...
, and with ''Vitex'', ''Petitia'', ''Pseudocarpidium'', and ''Teijsmanniodendron'' constituting the other.[Gemma L.C. Bramley, Félix Forest, and Rogier P.J. de Kok. 2009. "Troublesome tropical mints: re-examining generic limits of ''Vitex'' and relations (Lamiaceae) in South East Asia". ''Taxon'' 58(2):500-510.]
Description
''Vitex'' is a genus of shrubs and trees, from 1.0 to 35 m tall. Some species have whitish bark that is characteristically furrowed. Leaves are opposite, usually compound. The fruit is a drupe
In botany, a drupe (or stone fruit) is a type of fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pip'' (UK), ''pit'' (US), ''stone'', or ''pyrena'') of hardened endocarp with a seed ...
.
Circumscription
In 2009, a molecular phylogenetic
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...
study showed that three small genera, ''Paravitex'', ''Viticipremna'', and ''Tsoongia'', are embedded in ''Vitex''. These three genera were duly sunk into synonymy with ''Vitex''.
''Pseudocarpidium'', ''Petitia'', and ''Teijsmanniodendron'' possibly are nested within ''Vitex''. Sampling in the 2009 study was not sufficient to determine the phylogenetic position of these genera. The relationships of ''Teijsmanniodendron'' to these genera was not discussed in a revision of ''Teijsmanniodendron'' in 2009.[Rogier P.J. de Kok, Go Rusea, and Abdul Latiff. 2009. "The Genus ''Teijsmanniodendron'' Koord. (Lamiaceae)". ''Kew Bulletin'' 64(4):587-625.]
Selected species
* '' Vitex acunae''
* '' Vitex agnus-castus'' — chasteberry, monk's pepper, chastetree
* '' Vitex ajugaeflora''
* '' Vitex altissima''
* '' Vitex amaniensis''
* '' Vitex capitata''
* '' Vitex chrysocarpa''
* '' Vitex cofassus''
* '' Vitex cooperi''
* '' Vitex cymosa''
* '' Vitex divaricata''
* '' Vitex doniana'' — wild African black plum, koronfinfin
* '' Vitex evoluta''
* '' Vitex gaumeri''
* '' Vitex gigantea''
* '' Vitex heptaphylla''
* '' Vitex keniensis'' — Meru oak
* '' Vitex kuylenii''
* '' Vitex lehmbachii''
* '' Vitex leucoxylon''
* '' Vitex lignum-vitae'' — yellow hollywood, lignum-vitae
* '' Vitex lindenii''
* '' Vitex longisepala''
* '' Vitex lucens'' — puriri
* '' Vitex megapotamica''
* '' Vitex negundo'' — five-leaf chastetree
* '' Vitex obovata''
* '' Vitex orinocensis''
* '' Vitex parviflora'' — Molave tree
* '' Vitex peduncularis''
* '' Vitex pinnata''
* '' Vitex quinata''
* '' Vitex rotundifolia'' — beach vitex
* ''Vitex thyrsiflora
''Vitex thyrsiflora'' is a species of woody vine in the Family (biology), family Lamiaceae. It is native to tropical West Africa, West and Central Africa. Its hollow stem is used as a home by an aggressive species of ant.
Description
Although ma ...
''
* '' Vitex triflora''
* '' Vitex trifolia'' — simpleleaf chastetree
* '' Vitex tripinnata''
* '' Vitex urceolata''
* ''Vitex yaundensis
''Vitex yaundensis'' is a species of plant in the family Lamiaceae. It is endemic to Cameroon. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss
Habitat destruction (also termed habitat l ...
''
* '' Vitex zanzibarensis''
* '' Vitex zeyheri''
References
Further reading
* Ray Harley, "In search of Labiatae in Eastern Brazil", ''Vitex: A Newsletter for Lamiaceae and Verbenaceae Research'',
Issue 1
February 2000, page 5.
External links
*
*
Missouri Botanical Garden
''Vitex''
Index Nominum Genericorum
''Vitex''
in Biodiversity Heritage Library
CRC World Dictionary of Plant Names: R-Z
{{Authority control
Lamiaceae genera
Taxa named by Carl Linnaeus