tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only ...

is a perennial woody plant. Tree or trees may also refer to:

Information representation

Tree structure A tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure" because the classic representation resembles a tree, although the chart is gen ...

or tree diagram, a way of representing a hierarchical nature of structure in a graphical form *

Family tree A family tree, also called a genealogy or a pedigree chart, is a chart representing family relationships in a conventional tree structure. More detailed family trees, used in medicine and social work, are known as genograms. Representations of ...

, used in genealogy to show familial relationships *

Decision tree A decision tree is a decision support system, decision support recursive partitioning structure that uses a Tree (graph theory), tree-like Causal model, model of decisions and their possible consequences, including probability, chance event ou ...

, a tree model of decisions and their consequences *

Dialogue tree A dialogue tree, or conversation tree, is a gameplay mechanic that is used throughout many adventure games (including action-adventure games) and role-playing video games. When interacting with a non-player character, the player is given a choice ...

, used to generate conversations *

Parse tree A parse tree or parsing tree (also known as a derivation tree or concrete syntax tree) is an ordered, rooted tree that represents the syntactic structure of a string according to some context-free grammar. The term ''parse tree'' itself is use ...

, used in linguistics to represent the syntax of sentences

Mathematics

Tree (descriptive set theory) In descriptive set theory, a tree on a set X is a collection of finite sequences of elements of X such that every prefix of a sequence in the collection also belongs to the collection. Definitions Trees The collection of all finite sequences of ...

, a set of finite sequences of elements of X that is closed under subsequences, on a set X *

Tree (graph theory) In graph theory, a tree is an undirected graph in which any two vertices are connected by path, or equivalently a connected acyclic undirected graph. A forest is an undirected graph in which any two vertices are connected by path, or equi ...

, a connected graph without cycles *

Tree (set theory) In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only pla ...

, like a graph-theory tree, but with a distinguished root, and possibly having chains of transfinite length * Tree diagram (probability theory), a tree-like representation of a probability space *TREE, an extremely fast-growing function; see

Kruskal's tree theorem In mathematics, Kruskal's tree theorem states that the set of finite trees over a well-quasi-ordered set of labels is itself well-quasi-ordered under homeomorphic embedding. A finitary application of the theorem gives the existence of the fast-g ...

Computing

Tree (automata theory) In automata theory, a tree is a particular way of representing a tree structure as sequences of natural numbers. For example, each node of the tree is a word over set of natural numbers (\mathbb), which helps this definition to be used in automa ...

Tree (command) In computing, tree is a recursive directory listing command or program that produces a depth-indented listing of files. Originating in PC- and MS-DOS, it is found in Digital Research FlexOS, IBM/Toshiba 4690 OS, PTS-DOS, FreeDOS, IBM OS/2, Micr ...

, a recursive directory listing program that produces a depth indented listing of files *

Tree (abstract data type) In computer science, a tree is a widely used abstract data type that represents a hierarchical tree structure with a set of connected nodes. Each node in the tree can be connected to many children (depending on the type of tree), but must be conn ...

, a widely used computer data structure that emulates a tree structure with a set of linked nodes *

Tree network A tree topology, or star-bus topology, is a hybrid network topology in which star networks are interconnected via bus networks. Tree networks are hierarchical, and each node can have an arbitrary number of child nodes. Regular tree networks A ...

, a type of computer and communication network topology *

Digital tree In computer science, a trie (, ), also known as a digital tree or prefix tree, is a specialized search tree data structure used to store and retrieve strings from a dictionary or set. Unlike a binary search tree, nodes in a trie do not store t ...

, prefix tree or trie, a computer science ordered tree data structure

Film and television

* ''The Tree'' (1969 film), an American film directed by Robert Guenette * ''The Tree'' (1993 film), a short film * ''The Tree'' (2001 film), a Singaporean film directed by Daisy Chan * ''The Tree'' (2010 film), an Australian/French film directed by Julie Bertuccelli * ''The Tree'' (2014 film), a Slovenian film directed by Sonja Prosenc * "The Tree" (''King Rollo''), a 1980 television episode

Literature

* ''Tree'' (novel), a 1978 historical novel by F. Sionil José * "Trees" (poem), a 1913 poem by Joyce Kilmer * ''The Trees'' (Richter novel), a 1940 novel by Conrad Richter * ''The Tree'' (book), an autobiographical book by John Fowles * ''The Tree'' (New Zealand play), a 1957 play by Stella Jones * ''The Tree'' (American play), a 1932 play by Richard Maibaum * "The Tree" (short story), a short horror story by H. P. Lovecraft *'' Ms. Tree'', a comic book and the title character * ''Trees'' (comics), a science fiction comic book series by Warren Ellis and Jason Howard *''

Trends in Ecology and Evolution A fad, trend, or craze is any form of collective behavior that develops within a culture, a generation, or social group in which a group of people enthusiastically follow an impulse for a short time period. Fads are objects or behaviors that ...

'', a scientific journal *'' Our Father Who Art in the Tree'', a 2002 novel by Judy Pascoe, reprinted in 2010 as simply ''The Tree'' * ''The Trees'' (Everett novel), a 2022 novel by Percival Everett

Music

Bands

Trees (band) Trees was a British folk rock band recording and touring throughout 1969, 1970 and 1971, reforming briefly to continue performing throughout 1972. Although the group met with little commercial success in their time, the reputation of the band ...

, British folk band

Albums

* ''Trees'' (Avantdale Bowling Club album), 2022 * ''Tree'' (Gaelic Storm album), 2001 * ''Tree'' (Johnny Duhan album), 2002 * ''Tree'' (TVXQ album), 2014 * ''Tree'' (Sekai no Owari album),2015 * ''The Tree'' (album), 2018

Songs

* "Trees", a 1961 song by

the Platters The Platters are an American vocal group formed in 1952. They are one of the most successful vocal groups of the early rock and roll era. Their distinctive sound bridges the pre-rock Tin Pan Alley tradition and the new burgeoning genre. The act ...

* "Trees", a song by Twenty One Pilots from the album '' Vessel'', 2013 * "The Trees" (Rush song), a 1978 song by Rush * "The Trees" (Pulp song), a 2001 song by Pulp * "The Trees", a song by Autechre from the album ''

Untilted ''Untilted'' is the eighth studio album by the British electronic music duo Autechre. It was released by Warp Records on 18 April 2005 in Europe and 19 April 2005 in North America, and by Beat Records on 9 April 2005 in Japan. The album charte ...

'', 2005 * "Trees", a 2011 song by

Twenty One Pilots Twenty One Pilots is an American musical duo from Columbus, Ohio. Initially a band, the group was formed in 2009 by lead vocalist Tyler Joseph along with Nick Thomas and Chris Salih, who both left in 2011. Since their departure, the line-up h ...

People

* Tree (surname), a surname (including a list of people with the name) * Keith "Tree" Barry (born 1964), American musician *

Tree Gelbman Theresa "Tree" Gelbman is a Character (arts), fictional character in Christopher Landon (filmmaker), Christopher Landon's slasher film ''Happy Death Day'' (2017) and its sequel, ''Happy Death Day 2U'' (2019). She was created by writer Scott Lobdel ...

, a fictional character in ''Happy Death Day'' and its sequel, ''Happy Death Day 2U'' * Lavon "Tree" Mercer (born 1959), American-Israeli basketball player *

Tree Rollins Wayne Monte "Tree" Rollins (born June 16, 1955) is an American former professional basketball player who played 18 seasons in the National Basketball Association (NBA) for the Atlanta Hawks, Cleveland Cavaliers, Detroit Pistons, Houston Rockets, ...

(born 1955), American basketball player

Other uses

The Tree (Gleizes) ''The Tree'' (French: ''L'Arbre''), is a painting created in 1910 by the French artist Albert Gleizes. Executed in an advanced Proto-Cubist style, the work was exhibited in Paris at the Salon des Indépendants, 1910 (no. 2160), the following yea ...

, a 1910 painting by Albert Gleizes * Tree (dominoes), a domino game in which every double is a spinner *

Wood (wuxing) In Chinese philosophy, wood (), sometimes translated as tree, is one of the five concepts that conform the ''wuxing''. It is the growing of the matter, or the matter's growing expanding stage. Wood is the lesser yang symbol of Yinyang characte ...

, an element in Chinese philosophy sometimes translated as tree *

Tree River The Tree River (Kogluktualuk) is a river in Nunavut, Canada. It flows into Coronation Gulf, an arm of the Arctic Ocean. Glacial landforms, such as a kame delta, are represented in the area of the Tree River. This area was the ancestral home o ...

, a Canadian river *

Sacred tree A sacred tree or holy tree is a tree which is considered to be sacred, or worthy of spiritual respect or reverence. Such trees appear throughout world history in various cultures including the ancient Hindu mythology, Greek, Celtic and Germanic m ...

, a tree believed to be sacred *

Stanford Tree The Stanford Tree is the Stanford Band's mascot and the unofficial mascot of Stanford University. Stanford's team name is "Stanford Cardinal, Cardinal", referring to the vivid Stanford Cardinal Red color (not the Northern cardinal, common songbir ...

, unofficial mascot of Stanford University *

Trees Dallas Trees is an American live music venue opened in 1990 in the Deep Ellum district of downtown Dallas, Texas. The venue has hosted international touring musical acts such as Nirvana, Snoop Dogg, the Flaming Lips, Death Grips, Daughter, the Wai ...

, a live music venue in the Deep Ellum district of Dallas, Texas * Tree (installation), an art installation in Paris, France *

Shoe tree A shoe tree may refer to: * Shoe tree (decorated plant), a perennial woody plant decorated with pairs of hung shoes * Shoe tree (device), a device placed inside of a shoe to preserve its shape {{Disambiguation ...

, a device for storing shoes *Tree, the wooden understructure of a horse's

saddle A saddle is a supportive structure for a rider of an animal, fastened to an animal's back by a girth. The most common type is equestrian. However, specialized saddles have been created for oxen, camels and other animals. It is not know ...

Tree model In historical linguistics, the tree model (also Stammbaum, genetic, or cladistic model) is a model of the evolution of languages analogous to the concept of a family tree, particularly a phylogenetic tree in the biological evolution of species. ...

, about language family trees in historical linguistics *The

Fuck Tree The Fuck Tree is a sessile oak tree on West Heath on Hampstead Heath in north London. It is located in an established gay cruising area. It is noted for its prostrate trunk which facilitates gay sex. History In 2025, an article in the ''D ...

, a tree on London's Hampstead Heath that facilitates gay sex